$ git clone -n https://src.fedoraproject.org/rpms/prrte.git /var/lib/mock/f41-build-side-1-3134476-39756/root/chroot_tmpdir/scmroot/prrte
Cloning into '/var/lib/mock/f41-build-side-1-3134476-39756/root/chroot_tmpdir/scmroot/prrte'...
$ git fetch origin 99e367d6b6a6798eda31b7d54059b1902405beda:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/prrte
 * [new ref]         99e367d6b6a6798eda31b7d54059b1902405beda -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 99e367d Enumerate plugins to ensure that they do not change without notice