$ git clone -n https://src.fedoraproject.org/rpms/liblangtag.git /var/lib/mock/f39-build-1638660-40074/root/chroot_tmpdir/scmroot/liblangtag
Cloning into '/var/lib/mock/f39-build-1638660-40074/root/chroot_tmpdir/scmroot/liblangtag'...
$ git fetch origin ffaf6b68f463a4ad58695f2d2f65f06b92f42c12:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/liblangtag
 * [new ref]         ffaf6b68f463a4ad58695f2d2f65f06b92f42c12 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ffaf6b6 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild