$ git clone -n https://src.fedoraproject.org/rpms/bsf.git /var/lib/mock/f39-build-1506412-35188/root/chroot_tmpdir/scmroot/bsf
Cloning into '/var/lib/mock/f39-build-1506412-35188/root/chroot_tmpdir/scmroot/bsf'...
$ git fetch origin f5422d2478051c1335f0776ea84ac969ae1dec24:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/bsf
 * [new ref]         f5422d2478051c1335f0776ea84ac969ae1dec24 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f5422d2 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild