$ git clone -n https://src.fedoraproject.org/rpms/rubygem-ejs.git /var/lib/mock/f40-build-2305425-57085/root/chroot_tmpdir/scmroot/rubygem-ejs
Cloning into '/var/lib/mock/f40-build-2305425-57085/root/chroot_tmpdir/scmroot/rubygem-ejs'...
$ git fetch origin 03b95e6473866c63490c992d3da7c39f5d131f00:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rubygem-ejs
 * [new ref]         03b95e6473866c63490c992d3da7c39f5d131f00 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 03b95e6 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild