$ git clone -n https://src.fedoraproject.org/rpms/qt5-qtquickcontrols2.git /var/lib/mock/f41-build-847178-163786/root/chroot_tmpdir/scmroot/qt5-qtquickcontrols2
Cloning into '/var/lib/mock/f41-build-847178-163786/root/chroot_tmpdir/scmroot/qt5-qtquickcontrols2'...
$ git fetch origin 7730d1b540267298540e78a1510eea75656574d9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/qt5-qtquickcontrols2
 * [new ref]         7730d1b540267298540e78a1510eea75656574d9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7730d1b 5.15.15