$ git clone -n https://src.fedoraproject.org/rpms/rubygem-byebug.git /var/lib/mock/f38-build-side-42-init-devel-670925-26673/root/chroot_tmpdir/scmroot/rubygem-byebug
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-670925-26673/root/chroot_tmpdir/scmroot/rubygem-byebug'...
$ git fetch origin 805a6fdce3a2ffa642892be09e3df72ed4acbeb1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rubygem-byebug
 * [new ref]         805a6fdce3a2ffa642892be09e3df72ed4acbeb1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 805a6fd Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild