Web Dialog Size - unexpected closing during export data

[ArekTrilab]

Module Web Dialog Size

To Reproduce

0 open window export data
1 I clicked on button in the upper right corner (window is expand)
2 I added new position (window is reduce)

Expected behavior
If I click to add an item I would like the window to remain wide expand.

[itms-huynguyen]

@tarteo Hi, you migrated this, maybe you can take a look?