$ git clone -n https://src.fedoraproject.org/rpms/ktnef.git /var/lib/mock/f42-build-side-1-3523542-46210/root/chroot_tmpdir/scmroot/ktnef
Cloning into '/var/lib/mock/f42-build-side-1-3523542-46210/root/chroot_tmpdir/scmroot/ktnef'...
$ git fetch origin 3b76678467214df86cef3038b4f76d33d21ee3a0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ktnef
 * [new ref]         3b76678467214df86cef3038b4f76d33d21ee3a0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3b76678 25.04.0