$ git clone -n https://src.fedoraproject.org/rpms/rubygem-actioncable.git /var/lib/mock/f40-build-2395549-60536/root/chroot_tmpdir/scmroot/rubygem-actioncable
Cloning into '/var/lib/mock/f40-build-2395549-60536/root/chroot_tmpdir/scmroot/rubygem-actioncable'...
$ git fetch origin 9a7e856527c7ba0a74d247d5bf207a24d1916fca:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rubygem-actioncable
 * [new ref]         9a7e856527c7ba0a74d247d5bf207a24d1916fca -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9a7e856 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild