$ git clone -n https://src.fedoraproject.org/rpms/abrt.git /var/lib/mock/f41-build-side-1-2747048-30968/root/chroot_tmpdir/scmroot/abrt
Cloning into '/var/lib/mock/f41-build-side-1-2747048-30968/root/chroot_tmpdir/scmroot/abrt'...
$ git fetch origin 1bb862864421a082c25fb635753f3d82e9b0a50e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/abrt
 * [new ref]         1bb862864421a082c25fb635753f3d82e9b0a50e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1bb8628 Drop container handler (rhbz#2295150)