$ git clone -n https://src.fedoraproject.org/rpms/rubygem-activestorage.git /var/lib/mock/f40-build-2305381-57082/root/chroot_tmpdir/scmroot/rubygem-activestorage
Cloning into '/var/lib/mock/f40-build-2305381-57082/root/chroot_tmpdir/scmroot/rubygem-activestorage'...
$ git fetch origin c36c28cb4aa3cde0a75e34a1da8a26dc9ea0b6bb:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rubygem-activestorage
 * [new ref]         c36c28cb4aa3cde0a75e34a1da8a26dc9ea0b6bb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c36c28c Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild