$ git clone -n https://src.fedoraproject.org/rpms/polkit.git /var/lib/mock/f41-build-side-1-3128643-39569/root/chroot_tmpdir/scmroot/polkit
Cloning into '/var/lib/mock/f41-build-side-1-3128643-39569/root/chroot_tmpdir/scmroot/polkit'...
$ git fetch origin 73c76c7eb4834ef472e8d5164dd36019d6ad45d0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/polkit
 * [new ref]         73c76c7eb4834ef472e8d5164dd36019d6ad45d0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 73c76c7 Setting loglevels and target via LogControl now allowed to root only