$ git clone -n https://src.fedoraproject.org/rpms/nextcloud-client.git /var/lib/mock/f40-build-803514-144281/root/chroot_tmpdir/scmroot/nextcloud-client
Cloning into '/var/lib/mock/f40-build-803514-144281/root/chroot_tmpdir/scmroot/nextcloud-client'...
$ git fetch origin 64be08e2ba960cc0907f2ac7dde8a8d91ba0848b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/nextcloud-client
 * [new ref]         64be08e2ba960cc0907f2ac7dde8a8d91ba0848b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 64be08e Update to v3.12.1