I accidentally ran into this today: $ git cherry-pick 1147 fatal: BUG: expected exactly one commit from walk git log shows no output: $ git log 1147 Neither of these are very helpful or reassuring. I tried a few things but I haven't looked the code yet. I found lots of inconsistencies along the way. $ git clone https://github.com/git/git $ cd git $git log 114 fatal: ambiguous argument '114': unknown revision or path not in the working tree. Use '--' to separate paths from revisions $ git checkout 114 error: pathspec '114' did not match any file(s) known to git. $ git merge 114 fatal: '114' does not point to a commit $ git cherry-pick 114 fatal: ambiguous argument '114': unknown revision or path not in the working tree. Use '--' to separate paths from revisions $ git checkout 1147 fatal: reference is not a tree: 1147 $ git merge 1147 error: 1147: expected commit type, but the object dereferences to blob type fatal: '1147' does not point to a commit $ git cherry-pick 1147 fatal: BUG: expected exactly one commit from walk $ git log 1147 $ git checkout 1146 error: short SHA1 1146 is ambiguous. error: pathspec '1146' did not match any file(s) known to git. $ git merge 1146 error: short SHA1 1146 is ambiguous. fatal: '1146' does not point to a commit $ git cherry-pick 1146 error: short SHA1 1146 is ambiguous. error: short SHA1 1146 is ambiguous. fatal: ambiguous argument '1146': unknown revision or path not in the working tree. Use '--' to separate paths from revisions $ git log 1146 error: short SHA1 1146 is ambiguous. error: short SHA1 1146 is ambiguous. fatal: ambiguous argument '1146': unknown revision or path not in the working tree. Use '--' to separate paths from revisions I can understand some of the inconsistent error reporting (checkout may expect filenames, but cherry-pick and merge do not). But this seems too varied to me. And the first two look like bugs. Any comments or suggestions? Phil -- To unsubscribe from this list: send the line "unsubscribe git" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html