Hidden edge bug

[DarylMcCullough]

Fixes issue #67 "Network - does updating an edge cause it to reset automatically in Hierarchical view".

There is an example of the buggy behavior in test/hidden_edge_test.html. To see the bug:

• Click on node 3.
• Drag it to the right.
• Release the mouse.
• Then hover over node 3 (or any other node or edge).
• The graph will reset (it shouldn't).

The only change is to the file Edge.js in lib/network/modules/components. Rebuild using "yarn" and "yarn build" and then retry the example hidden_edge_test.html

[DarylMcCullough]

Fixed a formatting issue that caused yarn format:check to fail (I don't actually understand what the problem was, something about white space, maybe?)

[micahstubbs]

thanks for the contribution @DarylMcCullough! I hope to test this and get it in sometime over the upcoming July 4th holiday. stay tuned.

[micahstubbs]

ok, testing this out locally at http://127.0.0.1:8080/test/hidden_edge_test.html

here is what I see when I add hidden_edge_test.html to the master branch. I can reproduce the bug. Thanks @DarylMcCullough for the test and the nice instructions to reproduce the bug!

[micahstubbs]

and here's the fix, testing locally on @DarylMcCullough's branch. works beautifully 👍

[micahstubbs]

Thanks for the contribution!

[mojoaxel]

💌 Thanks @DarylMcCullough for your contribution!
This pull-request has been merge into visjs/vis-network#29