$ git clone -n https://src.fedoraproject.org/rpms/qt5-qtconnectivity.git /var/lib/mock/f40-build-800406-143529/root/chroot_tmpdir/scmroot/qt5-qtconnectivity
Cloning into '/var/lib/mock/f40-build-800406-143529/root/chroot_tmpdir/scmroot/qt5-qtconnectivity'...
$ git fetch origin 4cbed7e5db88be338635cdab000859ac407a2bdf:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/qt5-qtconnectivity
 * [new ref]         4cbed7e5db88be338635cdab000859ac407a2bdf -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4cbed7e 5.15.13