git ls-remote的`pattern`的解释是什么？

Question

git ls-remote采取哪种类型的“模式”？

man git-ls-remote说：

   <refs>...
       When unspecified, all references, after filtering done with --heads
       and --tags, are shown. When <refs>... are specified, only references
       matching the given patterns are displayed.

这是POSIX shell glob，正则表达式，gitignore模式...？