$ git clone -n https://src.fedoraproject.org/rpms/rubygem-launchy.git /var/lib/mock/f40-build-2033891-47850/root/chroot_tmpdir/scmroot/rubygem-launchy
Cloning into '/var/lib/mock/f40-build-2033891-47850/root/chroot_tmpdir/scmroot/rubygem-launchy'...
$ git fetch origin 9c1f03d1f59994b3d3f0760893142bd93cd5c013:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rubygem-launchy
 * [new ref]         9c1f03d1f59994b3d3f0760893142bd93cd5c013 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9c1f03d Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild