$ git clone -n https://src.fedoraproject.org/rpms/ruff.git /var/lib/mock/f42-build-side-1-3501255-45974/root/chroot_tmpdir/scmroot/ruff
Cloning into '/var/lib/mock/f42-build-side-1-3501255-45974/root/chroot_tmpdir/scmroot/ruff'...
$ git fetch origin 316b464c883a45b4492ea2ff02902f8c3afbadfd:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ruff
 * [new ref]         316b464c883a45b4492ea2ff02902f8c3afbadfd -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 316b464 Update to version 0.11.5; Fixes RHBZ#2353928