$ git clone -n https://src.fedoraproject.org/rpms/gir-to-d.git /var/lib/mock/f39-build-2518742-61728/root/chroot_tmpdir/scmroot/gir-to-d
Cloning into '/var/lib/mock/f39-build-2518742-61728/root/chroot_tmpdir/scmroot/gir-to-d'...
$ git fetch origin af4026c541407289b4eef4f173c569902a311569:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gir-to-d
 * [new ref]         af4026c541407289b4eef4f173c569902a311569 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at af4026c Rebuilt for ldc 1.33