$ git clone -n https://src.fedoraproject.org/rpms/pngnq.git /var/lib/mock/f39-build-1459268-33120/root/chroot_tmpdir/scmroot/pngnq
Cloning into '/var/lib/mock/f39-build-1459268-33120/root/chroot_tmpdir/scmroot/pngnq'...
$ git fetch origin 808ed2e4aa6db5242e4dfd604a85ec3ecd978983:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/pngnq
 * [new ref]         808ed2e4aa6db5242e4dfd604a85ec3ecd978983 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 808ed2e Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild