$ git clone -n https://src.fedoraproject.org/rpms/libksysguard.git /var/lib/mock/f42-build-side-1-3569459-46747/root/chroot_tmpdir/scmroot/libksysguard
Cloning into '/var/lib/mock/f42-build-side-1-3569459-46747/root/chroot_tmpdir/scmroot/libksysguard'...
$ git fetch origin 329011d00ffe9a96d84842bb841c493289e508f6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libksysguard
 * [new ref]         329011d00ffe9a96d84842bb841c493289e508f6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 329011d 6.4.0