Error when using with vim 8.1

[yihuang]

Error detected while processing function gitblame#echo[3]..gitblame#commit_summary:
line   21:
E684: list index out of range: 1
E116: Invalid arguments for function matchstr(git_blame[1], 'author \zs.\+$')
E15: Invalid expression: matchstr(git_blame[1], 'author \zs.\+$')
line   22:
E684: list index out of range: 2
E116: Invalid arguments for function matchstr(git_blame[2], 'author-mail \zs.\+$')
E15: Invalid expression: matchstr(git_blame[2], 'author-mail \zs.\+$')
line   25:
E121: Undefined variable: author_mail
E15: Invalid expression: '['.commit_hash[0:8].'] '.summary .blank .author_mail .blank .author
0

[zivyangll]

@yihuang Thanks for your providing bugs. It's ok now.

just reinstall git-blame.vim.