$ git clone -n https://src.fedoraproject.org/rpms/bamf.git /var/lib/mock/f39-build-1522964-35975/root/chroot_tmpdir/scmroot/bamf
Cloning into '/var/lib/mock/f39-build-1522964-35975/root/chroot_tmpdir/scmroot/bamf'...
$ git fetch origin f44bac99f6542f0f690ccc84c08b8beeddf8e0a1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/bamf
 * [new ref]         f44bac99f6542f0f690ccc84c08b8beeddf8e0a1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f44bac9 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild