$ git clone -n https://src.fedoraproject.org/rpms/gnome-sudoku.git /var/lib/mock/f41-build-851439-165956/root/chroot_tmpdir/scmroot/gnome-sudoku
Cloning into '/var/lib/mock/f41-build-851439-165956/root/chroot_tmpdir/scmroot/gnome-sudoku'...
$ git fetch origin bd5274867063124f18175571b0ae9dc0c301f6a0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gnome-sudoku
 * [new ref]         bd5274867063124f18175571b0ae9dc0c301f6a0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bd52748 Update to 47.0