$ git clone -n https://src.fedoraproject.org/rpms/kactivitymanagerd.git /var/lib/mock/f40-build-2165463-50976/root/chroot_tmpdir/scmroot/kactivitymanagerd
Cloning into '/var/lib/mock/f40-build-2165463-50976/root/chroot_tmpdir/scmroot/kactivitymanagerd'...
$ git fetch origin ffd0bcd8851d3c393bc142daad01c82dd8fb285f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kactivitymanagerd
 * [new ref]         ffd0bcd8851d3c393bc142daad01c82dd8fb285f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ffd0bcd 5.91.0