$ git clone -n https://src.fedoraproject.org/rpms/qt5-qtwebengine.git /var/lib/mock/f41-build-side-1-2662748-28830/root/chroot_tmpdir/scmroot/qt5-qtwebengine
Cloning into '/var/lib/mock/f41-build-side-1-2662748-28830/root/chroot_tmpdir/scmroot/qt5-qtwebengine'...
$ git fetch origin 4968dc2faadf1a9bac64fdff01488f7716fc844f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/qt5-qtwebengine
 * [new ref]         4968dc2faadf1a9bac64fdff01488f7716fc844f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4968dc2 convert license to SPDX