$ git clone -n https://src.fedoraproject.org/rpms/rubygem-http_parser.rb.git /var/lib/mock/f40-build-777942-129651/root/chroot_tmpdir/scmroot/rubygem-http_parser.rb
Cloning into '/var/lib/mock/f40-build-777942-129651/root/chroot_tmpdir/scmroot/rubygem-http_parser.rb'...
$ git fetch origin fb6205d92d8a5bcea40b519f4f7debfe829f34e1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rubygem-http_parser.rb
 * [new ref]         fb6205d92d8a5bcea40b519f4f7debfe829f34e1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fb6205d Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild