我在vim 8.0.1097和vim 7.4上有相同的vim设置，但自动行为不同：
在vim 8中：
if [ "$u" != "root" ]
then
a
b
c
fi
在Vim 7中它运行良好。
Vim 8 :set显示：
--- Options ---
autoindent commentstring=#%s hidden incsearch matchtime=2 scrolloff=7 smartcase tabstop=4 ttymouse=xterm t_vb=
background=dark expandtab history=700 laststatus=2 modified shiftwidth=4 smarttab textwidth=79 viminfo=%,'20,"50
cindent filetype=sh hlsearch lazyredraw ruler showmatch noswapfile timeoutlen=500 wildmenu
cmdheight=2 helplang=en ignorecase linebreak scroll=31 showtabline=2 syntax=sh ttyfast nowritebackup
backspace=eol,start,indent
completeopt=menuone,longest,preview
fileencoding=utf-8
fileencodings=ucs-bom,utf-8,latin1
fileformats=unix,dos,mac
grepprg=grep -nH $*
guicursor=n-v-c:block,o:hor50,i-ci:hor15,r-cr:hor30,sm:block,a:blinkon0
indentexpr=GetShIndent()
indentkeys=0{,0},!^F,o,O,e,0=then,0=do,0=else,0=elif,0=fi,0=esac,0=done,0=end,),0=;;,0=;&,0=fin,0=fil,0=fip,0=fir,0=fix
runtimepath=~/.vim,~/.vim/bundle/ctrlp,~/.vim/bundle/indentLine,~/.vim/bundle/javacomplete,~/.vim/bundle/jedi-vim,~/.vim/bundle/nerdcommenter,~/.vim/bundle/nerdtree,~/.vim/bundle/supertab,~/.vim/bundle/syntastic,~/.vim/bundle/vim-fugit
ive,~/.vim/bundle/vim-repeat,~/.vim/bundle/vim-surround,~/.vim/bundle/vim-tmux-navigator,~/.vim/bundle/vim-trailing-whitespace,/usr/share/vim/vimfiles,/usr/share/vim/vim80,/usr/share/vim/vimfiles/after,~/.vim/bundle/jedi-vim/after,~/.vim
/bundle/indentLine/after,~/.vim/after
statusline= %{HasPaste()}%F%m%r%h %w CWD: %r%{getcwd()}%h Line: %l Column: %c
switchbuf=useopen,usetab,newtab
whichwrap=b,s,<,>,h,l
wildignore=*.o,*~,*.pyc
vim 7.4 :set显示：
--- Options ---
autoindent commentstring=#%s filetype=sh hlsearch lazyredraw scroll=31 showtabline=2 syntax=sh ttyfast nowritebackup
background=dark cscopetag helplang=en ignorecase linebreak scrolloff=7 smartcase tabstop=4 ttymouse=xterm t_vb=
cindent cscopeverbose hidden incsearch matchtime=2 shiftwidth=4 smarttab textwidth=79 viminfo=%,'20,"50
cmdheight=2 expandtab history=700 laststatus=2 ruler showmatch noswapfile timeoutlen=500 wildmenu
backspace=eol,start,indent
completeopt=menuone,longest,preview
cscopeprg=/usr/bin/cscope
fileencoding=utf-8
fileencodings=ucs-bom,utf-8,latin1
fileformats=unix,dos,mac
grepprg=grep -nH $*
guicursor=n-v-c:block,o:hor50,i-ci:hor15,r-cr:hor30,sm:block,a:blinkon0
indentexpr=GetShIndent()
indentkeys=0{,0},!^F,o,O,e,0=then,0=do,0=else,0=elif,0=fi,0=esac,0=done,),0=;;,0=;&,0=fin,0=fil,0=fip,0=fir,0=fix
iskeyword=@,48-57,_,192-255,.
runtimepath=~/.vim,~/.vim/bundle/ctrlp,~/.vim/bundle/indentLine,~/.vim/bundle/javacomplete,~/.vim/bundle/jedi-vim,~/.vim/bundle/nerdcommenter,~/.vim/bundle/nerdtree,~/.vim/bundle/supertab,~/.vim/bundle/syntastic,~/.vim/bundle/vim-fugit
ive,~/.vim/bundle/vim-repeat,~/.vim/bundle/vim-surround,~/.vim/bundle/vim-tmux-navigator,~/.vim/bundle/vim-trailing-whitespace,/usr/share/vim/vimfiles,/usr/share/vim/vim74,/usr/share/vim/vimfiles/after,~/.vim/bundle/jedi-vim/after,~/.vim
/bundle/indentLine/after,~/.vim/after
statusline= %{HasPaste()}%F%m%r%h %w CWD: %r%{getcwd()}%h Line: %l Column: %c
switchbuf=useopen,usetab,newtab
whichwrap=b,s,<,>,h,l
wildignore=*.o,*~,*.pyc
区别在于：
--- Options ---
- autoindent commentstring=#%s hidden incsearch matchtime=2 scrolloff=7 smartcase tabstop=4 ttymouse=xterm t_vb=
- background=dark expandtab history=700 laststatus=2 modified shiftwidth=4 smarttab textwidth=79 viminfo=%,'20,"50
- cindent filetype=sh hlsearch lazyredraw ruler showmatch noswapfile timeoutlen=500 wildmenu
- cmdheight=2 helplang=en ignorecase linebreak scroll=31 showtabline=2 syntax=sh ttyfast nowritebackup
+ autoindent commentstring=#%s filetype=sh hlsearch lazyredraw scroll=31 showtabline=2 syntax=sh ttyfast nowritebackup
+ background=dark cscopetag helplang=en ignorecase linebreak scrolloff=7 smartcase tabstop=4 ttymouse=xterm t_vb=
+ cindent cscopeverbose hidden incsearch matchtime=2 shiftwidth=4 smarttab textwidth=79 viminfo=%,'20,"50
+ cmdheight=2 expandtab history=700 laststatus=2 ruler showmatch noswapfile timeoutlen=500 wildmenu
backspace=eol,start,indent
completeopt=menuone,longest,preview
+ cscopeprg=/usr/bin/cscope
fileencoding=utf-8
fileencodings=ucs-bom,utf-8,latin1
fileformats=unix,dos,mac
grepprg=grep -nH $*
guicursor=n-v-c:block,o:hor50,i-ci:hor15,r-cr:hor30,sm:block,a:blinkon0
indentexpr=GetShIndent()
- indentkeys=0{,0},!^F,o,O,e,0=then,0=do,0=else,0=elif,0=fi,0=esac,0=done,0=end,),0=;;,0=;&,0=fin,0=fil,0=fip,0=fir,0=fix
+ indentkeys=0{,0},!^F,o,O,e,0=then,0=do,0=else,0=elif,0=fi,0=esac,0=done,),0=;;,0=;&,0=fin,0=fil,0=fip,0=fir,0=fix
+ iskeyword=@,48-57,_,192-255,.
runtimepath=~/.vim,~/.vim/bundle/ctrlp,~/.vim/bundle/indentLine,~/.vim/bundle/javacomplete,~/.vim/bundle/jedi-vim,~/.vim/bundle/nerdcommenter,~/.vim/bundle/nerdtree,~/.vim/bundle/supertab,~/.vim/bundle/syntastic,~/.vim/bundle/vim-fugit
- ive,~/.vim/bundle/vim-repeat,~/.vim/bundle/vim-surround,~/.vim/bundle/vim-tmux-navigator,~/.vim/bundle/vim-trailing-whitespace,/usr/share/vim/vimfiles,/usr/share/vim/vim80,/usr/share/vim/vimfiles/after,~/.vim/bundle/jedi-vim/after,~/.vim
+ ive,~/.vim/bundle/vim-repeat,~/.vim/bundle/vim-surround,~/.vim/bundle/vim-tmux-navigator,~/.vim/bundle/vim-trailing-whitespace,/usr/share/vim/vimfiles,/usr/share/vim/vim74,/usr/share/vim/vimfiles/after,~/.vim/bundle/jedi-vim/after,~/.vim
/bundle/indentLine/after,~/.vim/after
statusline= %{HasPaste()}%F%m%r%h %w CWD: %r%{getcwd()}%h Line: %l Column: %c
switchbuf=useopen,usetab,newtab
前4个差异实际上只是按不同顺序排列，项目数量相同。我试图手动设置cscopeprg以匹配vim 7.4的值，它没有任何区别。
我不明白我的vim配置可能导致这种行为的哪一部分。
我的插件列表（全部最新）：
ctrlp indentLine javacomplete jedi-vim nerdcommenter nerdtree supertab syntastic vim-fugitive vim-repeat vim-surround vim-tmux-navigator vim-trailing-whitespace
我也尝试删除所有插件，vim 8仍然出现故障。
使用降级方法，我将vim重新安装到8.0.662和8.0.1030，打字时的缩进工作完美。我认为较新版本的vim存在一个错误。