$ git clone -n https://src.fedoraproject.org/forks/packit-stg/rpms/qt5-qtpbfimageformat.git /var/lib/mock/f43-build-61031567-6588012/root/chroot_tmpdir/scmroot/qt5-qtpbfimageformat
Cloning into '/var/lib/mock/f43-build-61031567-6588012/root/chroot_tmpdir/scmroot/qt5-qtpbfimageformat'...
$ git fetch origin 207c31f6e836606f31d49520ffb7226030ba22c0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/forks/packit-stg/rpms/qt5-qtpbfimageformat
 * [new ref]         207c31f6e836606f31d49520ffb7226030ba22c0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 207c31f Update to 4.3 upstream release