$ git clone -n https://src.fedoraproject.org/rpms/krita.git /var/lib/mock/f40-build-2517109-61730/root/chroot_tmpdir/scmroot/krita
Cloning into '/var/lib/mock/f40-build-2517109-61730/root/chroot_tmpdir/scmroot/krita'...
$ git fetch origin bbd790ce447fc9bbd7bbd5935962f21a5a46ffcb:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/krita
 * [new ref]         bbd790ce447fc9bbd7bbd5935962f21a5a46ffcb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bbd790c Rebuilt for turbojpeg 3.0.2