$ git clone -n https://src.fedoraproject.org/rpms/rubygem-sprockets-rails.git /var/lib/mock/f40-build-2207674-52086/root/chroot_tmpdir/scmroot/rubygem-sprockets-rails
Cloning into '/var/lib/mock/f40-build-2207674-52086/root/chroot_tmpdir/scmroot/rubygem-sprockets-rails'...
$ git fetch origin 9ee9e7a4bb673b37e1ca8ab1cba12fbf91b2b9e5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rubygem-sprockets-rails
 * [new ref]         9ee9e7a4bb673b37e1ca8ab1cba12fbf91b2b9e5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9ee9e7a Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild