If fast-export was asked to export a Mercurial branch to Git and a
branch of the same name already existed in the Git repo but it was not
created by fast export, fast-export would crash while trying to format
an error message claiming that the destination branch was modified
behind its back.
This patch extends fast-export to detect the situation above and give
a proper error message which hopefully is less confusing to the user.
Credits for discovering the original crash goes to Shun-ichi Goto
gotoh@taiyo.co.jp.
If fast-export was asked to export a Mercurial branch to Git and a branch of the same name already existed in the Git repo but it was not created by fast export, fast-export would crash while trying to format an error message claiming that the destination branch was modified behind its back.
This patch extends fast-export to detect the situation above and give a proper error message which hopefully is less confusing to the user.
Credits for discovering the original crash goes to Shun-ichi Goto gotoh@taiyo.co.jp.
Closes: #269.