$ git clone -n https://src.fedoraproject.org/rpms/libksysguard.git /var/lib/mock/f42-build-side-1-3512242-46067/root/chroot_tmpdir/scmroot/libksysguard
Cloning into '/var/lib/mock/f42-build-side-1-3512242-46067/root/chroot_tmpdir/scmroot/libksysguard'...
$ git fetch origin a6513ecc224c12a57d193c60d8c6260ab4c0bbf0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libksysguard
 * [new ref]         a6513ecc224c12a57d193c60d8c6260ab4c0bbf0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a6513ec Rebuild (qt6)