$ git clone -n https://src.fedoraproject.org/rpms/qt6ct.git /var/lib/mock/f42-bootstrap-3533716-46421/root/chroot_tmpdir/scmroot/qt6ct
Cloning into '/var/lib/mock/f42-bootstrap-3533716-46421/root/chroot_tmpdir/scmroot/qt6ct'...
$ git fetch origin 4710cccd860495c4e6191b969cbe95ca5502f5e9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/qt6ct
 * [new ref]         4710cccd860495c4e6191b969cbe95ca5502f5e9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4710ccc Rebuild (qt6)