$ git clone -n https://src.fedoraproject.org/rpms/rubygem-multi_xml.git /var/lib/mock/f39-build-1470685-33912/root/chroot_tmpdir/scmroot/rubygem-multi_xml
Cloning into '/var/lib/mock/f39-build-1470685-33912/root/chroot_tmpdir/scmroot/rubygem-multi_xml'...
$ git fetch origin 2497ddaa32c5b2aeb966cd6cc6d6e4c18a11cf97:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rubygem-multi_xml
 * [new ref]         2497ddaa32c5b2aeb966cd6cc6d6e4c18a11cf97 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2497dda Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild