$ git clone -n https://src.fedoraproject.org/rpms/perftest.git /var/lib/mock/f40-build-2201694-51839/root/chroot_tmpdir/scmroot/perftest
Cloning into '/var/lib/mock/f40-build-2201694-51839/root/chroot_tmpdir/scmroot/perftest'...
$ git fetch origin e0d93f720e31ccca96045d5bc0fdfa400527917a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perftest
 * [new ref]         e0d93f720e31ccca96045d5bc0fdfa400527917a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e0d93f7 Update to upstream 23.07.0-0.27