Back to version 8.1.100 fixes

Fix: entries in the environment drawer is no longer duplicated

When the departure waypoint and arrival waypoint in a route has the same default user waypoint name, the environment entries in the arrival drawer is no longer duplicated from the departure drawer.

Before Fix:
redmine/OldBuild_-_All_data_are_the_same_-_Bug.png

After Fix:
redmine/LatestBuild_-_CorrectData.png