$ git clone -n https://src.fedoraproject.org/rpms/rubygem-haml.git /var/lib/mock/f40-build-2053435-49093/root/chroot_tmpdir/scmroot/rubygem-haml
Cloning into '/var/lib/mock/f40-build-2053435-49093/root/chroot_tmpdir/scmroot/rubygem-haml'...
$ git fetch origin 4e83184b618f399847f373a26b881b53fa041d81:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rubygem-haml
 * [new ref]         4e83184b618f399847f373a26b881b53fa041d81 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4e83184 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild