$ git clone -n https://src.fedoraproject.org/rpms/glibd.git /var/lib/mock/f39-build-1881085-42757/root/chroot_tmpdir/scmroot/glibd
Cloning into '/var/lib/mock/f39-build-1881085-42757/root/chroot_tmpdir/scmroot/glibd'...
$ git fetch origin 9e9b2e22fd90fe9c5251802e71ab2f59ef5f10c9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/glibd
 * [new ref]         9e9b2e22fd90fe9c5251802e71ab2f59ef5f10c9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9e9b2e2 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild