$ git clone -n https://src.fedoraproject.org/rpms/qt5-qtwebkit.git /var/lib/mock/f45-build-34078-677/root/chroot_tmpdir/scmroot/qt5-qtwebkit
Cloning into '/var/lib/mock/f45-build-34078-677/root/chroot_tmpdir/scmroot/qt5-qtwebkit'...
$ git fetch origin 843bf794d1374c6aeed860013abd312eed1f8538:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/qt5-qtwebkit
 * [new ref]         843bf794d1374c6aeed860013abd312eed1f8538 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 843bf79 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild