Incorrect initial panel drop position after refreshing page

[mattrunyon]

Description

Probably related to #1268. I've only seen this happen after a page refresh. With multiple rows and the bottom row having multiple columns. The left column has many items (enough so the tabs fill the header area) and the right column has 1 item. Refreshing the page

Steps to reproduce

1. Create a layout with 2 rows. Bottom row should have 2 columns. The left column should have many items (enough to fill the tab header space) and the right row should have 1 item.
2. Refresh the page
3. Drag the item in the right column
4. Drop at the end of the items on the left column

Expected results

4. Item is placed at the end of the tabs in the left column. Column expands to fill horizontal space

Actual results

4. Item is placed in a seemingly random position in the left column (usually 2nd position for me). Column expands to fill horizontal space.

Additional details and attachments

Screen.Recording.2023-05-05.at.6.11.39.PM.mov

Versions

• Web UI Version: 0.37.3