$ git clone -n https://src.fedoraproject.org/rpms/pjproject.git /var/lib/mock/f39-build-1971156-43321/root/chroot_tmpdir/scmroot/pjproject
Cloning into '/var/lib/mock/f39-build-1971156-43321/root/chroot_tmpdir/scmroot/pjproject'...
$ git fetch origin 9872a09bae8fb95480203a93fe0067dd479c496c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/pjproject
 * [new ref]         9872a09bae8fb95480203a93fe0067dd479c496c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9872a09 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild