$ git clone -n https://src.fedoraproject.org/rpms/krita.git /var/lib/mock/f39-build-2359346-60322/root/chroot_tmpdir/scmroot/krita
Cloning into '/var/lib/mock/f39-build-2359346-60322/root/chroot_tmpdir/scmroot/krita'...
$ git fetch origin 58a7ab8768f448a3805a6b8713f398d02206ecf8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/krita
 * [new ref]         58a7ab8768f448a3805a6b8713f398d02206ecf8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 58a7ab8 fix build against lubunibreak-4.0