$ git clone -n https://src.fedoraproject.org/rpms/plasma-browser-integration.git /var/lib/mock/f41-build-840750-160916/root/chroot_tmpdir/scmroot/plasma-browser-integration
Cloning into '/var/lib/mock/f41-build-840750-160916/root/chroot_tmpdir/scmroot/plasma-browser-integration'...
$ git fetch origin ff9a2c346b61a3235cc70b11c61e271fca806117:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/plasma-browser-integration
 * [new ref]         ff9a2c346b61a3235cc70b11c61e271fca806117 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ff9a2c3 6.1.4