Bug report: multiselect plugin leads to "double updates"

Gantt
#1

Hello!

I’d like to report an issue with the multiselect plugin. Here’s a minimal repro case:

  1. Open Javascript console (e.g. in Chrome via Devtools)
  2. Open snippet http://snippet.dhtmlx.com/5/635f2b53e
  3. Click once on the demo task so that it gets selected ( → row gets highlighted in yellow)
  4. Now move the task in the Gantt chart to another date

Observation:
The updation function of the data processor gets called twice (see console output).

Expected result:
The update function only gets called once.

Note: This does not happen if the row is not selected before you move the task or if the multiselect plugin is not enabled.

#2

Hello,
Thanks for your detailed description of the issue.
This is a bug in Gantt, and we are aware of it. The dev team will fix it in the future, but I cannot give you any ETA.
Currently, there is no workaround to prevent the events to fire several times after the task is modified with multiselect extension.

#3

Hello,
The dev team fixed the bug with the multiselect extension, so now the events don’t fire twice for the selected task:
https://docs.dhtmlx.com/gantt/whatsnew.html#x8318x90x8319x:~:text=Fix%20the%20duplicate%20event%20firing%20while%20interacting%20with%20a%20selected%20task%20when%20the%20Multiselect%20extension%20is%20enabled

You can see that the bug is no longer reproduced in the following samples:
http://snippet.dhtmlx.com/5/4c9b1a86e
https://snippet.dhtmlx.com/5/eb6369144
https://snippet.dhtmlx.com/5/b7925f34e