$ git clone -n https://src.fedoraproject.org/rpms/kolorfill.git /var/lib/mock/f40-build-1221814-22752/root/chroot_tmpdir/scmroot/kolorfill
Cloning into '/var/lib/mock/f40-build-1221814-22752/root/chroot_tmpdir/scmroot/kolorfill'...
$ git fetch origin df101734a78fb05e18f281667510fed7f86e936e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kolorfill
 * [new ref]         df101734a78fb05e18f281667510fed7f86e936e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at df10173 Revert to Qt5