This fixes the GUI inconsistency reported in the referenced bug. On edit of an OpenVPN server that has tun mode, not shared key, and the gwredir checkbox checked, the local_network fields are shown, but actually they should be hidden (because that is what happens on first data entry when gwredir is checked). At least this makes the GUI consistent. Then the other issues mentioned in Redmine feature 6483 can be addressed separately. (cherry picked from commit fa20dac1b58488713d88b44cafc760a83d79cb66)
Fix #6482 OpenVPN Redirect Gateway Option Causes GUI Issue
This fixes the GUI inconsistency reported in the referenced bug. On edit of an OpenVPN server that has tun mode, not shared key, and the gwredir checkbox checked, the local_network fields are shown, but actually they should be hidden (because that is what happens on first data entry when gwredir is checked).
At least this makes the GUI consistent. Then the other issues mentioned in Redmine feature 6483 can be addressed separately.
(cherry picked from commit fa20dac1b58488713d88b44cafc760a83d79cb66)