$ git clone -n https://src.fedoraproject.org/rpms/plasma-bigscreen.git /var/lib/mock/f42-bootstrap-3533981-46428/root/chroot_tmpdir/scmroot/plasma-bigscreen
Cloning into '/var/lib/mock/f42-bootstrap-3533981-46428/root/chroot_tmpdir/scmroot/plasma-bigscreen'...
$ git fetch origin 8fe120619accb74a6bf421d172d60a53a5e1aa78:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/plasma-bigscreen
 * [new ref]         8fe120619accb74a6bf421d172d60a53a5e1aa78 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8fe1206 Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild