$ git clone -n https://src.fedoraproject.org/rpms/kdeplasma-addons.git /var/lib/mock/f42-build-3279368-41337/root/chroot_tmpdir/scmroot/kdeplasma-addons
Cloning into '/var/lib/mock/f42-build-3279368-41337/root/chroot_tmpdir/scmroot/kdeplasma-addons'...
$ git fetch origin da89d004f90438d59751453fd261f8bcd48a45a6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kdeplasma-addons
 * [new ref]         da89d004f90438d59751453fd261f8bcd48a45a6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at da89d00 6.3.2