$ git clone -n https://src.fedoraproject.org/rpms/wireless-regdb.git /var/lib/mock/f39-build-1523387-35996/root/chroot_tmpdir/scmroot/wireless-regdb
Cloning into '/var/lib/mock/f39-build-1523387-35996/root/chroot_tmpdir/scmroot/wireless-regdb'...
$ git fetch origin b4a2a2d750f58a0f916197eb858f826c45998e47:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/wireless-regdb
 * [new ref]         b4a2a2d750f58a0f916197eb858f826c45998e47 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b4a2a2d Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild