When enlarging JabRef window, columns shrink in width

[serialc]

JabRef 5.1--2020-08-30--e023aa0
Linux 5.4.0-42-generic amd64
Java 14.0.2

Steps to reproduce the behavior:

1. Resizing JabRef window works fine on opening, scaling column width with window size.
2. Have more than 2 files/tabs open.
3. Change the width of a column (e.g., Year).
4. Enlarge the JabRef window width.
5. JabRef responsively shrinks all the columns, except the rightmost (as if you were reducing window width).

[mlep]

Similar to #6690.
@serialc: My temporary solution was to open two files maximum.

[serialc]

Thanks @mlep. I had three files open, now with two files it no longer happens.
I've added that to the OP. I think you're right that it's likely the same issue as #6690.

[ilippert]

See also #5872

[wujastyk]

JabRef 5.3--2021-01-24--ae43548
Linux 5.4.0-62-generic amd64
Java 15.0.2
JavaFX 15.0.1+1

Columns have a life of their own!

cinnamon-20210125-1.mp4

[ilippert]

Columns have a life of their own!
cinnamon-20210125-1.mp4

see #6626 (comment) ;)

[wujastyk]

Thanks! I'm so grateful to all the JabRef developers.