$ git clone -n https://src.fedoraproject.org/rpms/ETL.git /var/lib/mock/f42-build-3283166-41399/root/chroot_tmpdir/scmroot/ETL
Cloning into '/var/lib/mock/f42-build-3283166-41399/root/chroot_tmpdir/scmroot/ETL'...
$ git fetch origin e21ed1c66a9c71dbda74e3ae90aca3518d20e430:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ETL
 * [new ref]         e21ed1c66a9c71dbda74e3ae90aca3518d20e430 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e21ed1c Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild