$ git clone -n https://src.fedoraproject.org/rpms/qt5-qtwebsockets.git /var/lib/mock/f39-build-1809645-41827/root/chroot_tmpdir/scmroot/qt5-qtwebsockets
Cloning into '/var/lib/mock/f39-build-1809645-41827/root/chroot_tmpdir/scmroot/qt5-qtwebsockets'...
$ git fetch origin 9da627fb736282feb37829f58e9ded19f017b923:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/qt5-qtwebsockets
 * [new ref]         9da627fb736282feb37829f58e9ded19f017b923 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9da627f 5.15.11