$ git clone -n https://src.fedoraproject.org/rpms/mingw-qt5-qtwebsockets.git /var/lib/mock/f42-build-side-1-3541395-46580/root/chroot_tmpdir/scmroot/mingw-qt5-qtwebsockets
Cloning into '/var/lib/mock/f42-build-side-1-3541395-46580/root/chroot_tmpdir/scmroot/mingw-qt5-qtwebsockets'...
$ git fetch origin 86f2ee917ff380eda11be94b62215748a2c4cd16:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mingw-qt5-qtwebsockets
 * [new ref]         86f2ee917ff380eda11be94b62215748a2c4cd16 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 86f2ee9 Update to 5.15.17