gO to open commit in a vertical split

Author: iamFIREcracker

autoload/fugitive.vim

@@ -7312,6 +7312,7 @@ function! s:BlameMaps(is_ftplugin) abort
   call s:Map('n', '~',    ':<C-U>exe <SID>BlameJump("~".v:count1)<CR>', '<silent>', ft)
   call s:Map('n', 'i',    ':<C-U>exe <SID>BlameCommit("exe <SID>BlameLeave()<Bar>edit")<CR>', '<silent>', ft)
   call s:Map('n', 'o',    ':<C-U>exe <SID>BlameCommit("split")<CR>', '<silent>', ft)
+  call s:Map('n', 'gO',   ':<C-U>exe <SID>BlameCommit("vsplit")<CR>', '<silent>', ft)
   call s:Map('n', 'O',    ':<C-U>exe <SID>BlameCommit("tabedit")<CR>', '<silent>', ft)
   call s:Map('n', 'p',    ':<C-U>exe <SID>BlameCommit("pedit")<CR>', '<silent>', ft)
   exe s:Map('n', '.',    ":<C-U> <C-R>=substitute(<SID>BlameCommitFileLnum()[0],'^$','@','')<CR><Home>", '', ft)

doc/fugitive.txt

@@ -68,6 +68,7 @@ that are part of Git repositories).
                         <CR>  close blame, and jump to patch that added line
                               (or directly to blob for boundary commit)
                         o     jump to patch or blob in horizontal split
+                        gO    jump to patch or blob in vertical split
                         O     jump to patch or blob in new tab
                         p     jump to patch or blob in preview window
                         -     reblame at commit