$ git clone -n https://src.fedoraproject.org/rpms/kf6-qqc2-desktop-style.git /var/lib/mock/f40-build-767896-125124/root/chroot_tmpdir/scmroot/kf6-qqc2-desktop-style
Cloning into '/var/lib/mock/f40-build-767896-125124/root/chroot_tmpdir/scmroot/kf6-qqc2-desktop-style'...
$ git fetch origin 73cf5b87f901981b440c61b5ed92a005131d29c5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf6-qqc2-desktop-style
 * [new ref]         73cf5b87f901981b440c61b5ed92a005131d29c5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 73cf5b8 5.247.0