$ git clone -n https://src.fedoraproject.org/rpms/unibilium.git /var/lib/mock/f40-build-789024-135482/root/chroot_tmpdir/scmroot/unibilium
Cloning into '/var/lib/mock/f40-build-789024-135482/root/chroot_tmpdir/scmroot/unibilium'...
$ git fetch origin 4be2b9f563d356b6f1999119ced15b7b60bd10ef:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/unibilium
 * [new ref]         4be2b9f563d356b6f1999119ced15b7b60bd10ef -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4be2b9f Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild