$ git clone -n https://src.fedoraproject.org/rpms/qt5-qtquickcontrols2.git /var/lib/mock/f40-build-2214827-52395/root/chroot_tmpdir/scmroot/qt5-qtquickcontrols2
Cloning into '/var/lib/mock/f40-build-2214827-52395/root/chroot_tmpdir/scmroot/qt5-qtquickcontrols2'...
$ git fetch origin a16202cae87c84dbb8dfa07efab673341fb78b6c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/qt5-qtquickcontrols2
 * [new ref]         a16202cae87c84dbb8dfa07efab673341fb78b6c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a16202c 5.15.12