$ git clone -n https://src.fedoraproject.org/rpms/bluechi.git /var/lib/mock/f40-build-740347-109656/root/chroot_tmpdir/scmroot/bluechi
Cloning into '/var/lib/mock/f40-build-740347-109656/root/chroot_tmpdir/scmroot/bluechi'...
$ git fetch origin 4296b6275d982fca485f4d4ae55f323051c3bf50:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/bluechi
 * [new ref]         4296b6275d982fca485f4d4ae55f323051c3bf50 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4296b62 Drop a no longer used patch