$ git clone -n https://src.fedoraproject.org/rpms/since.git /var/lib/mock/f40-build-790448-136588/root/chroot_tmpdir/scmroot/since
Cloning into '/var/lib/mock/f40-build-790448-136588/root/chroot_tmpdir/scmroot/since'...
$ git fetch origin 1682801f0c5936fec5413753612665e14d6f25d3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/since
 * [new ref]         1682801f0c5936fec5413753612665e14d6f25d3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1682801 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild