bar resize can't reach a certain number in one shot

[pascalpoitras]

Bug summary

I can't resize a bar to a certain number in one shot.

Steps to reproduce

1. start a terminal with the following geometry 80x24
2. launch a default weechat configuration
3. /window splitv 50
4. /bar set buflist size 50
5. Don't works
6. /bar set buflist size 30
7. /bar set buflist size 50
8 now it works ???

Current behavior

To reach 50 we first need to give a lower number then we can reach 50

Expected behavior

It should go straight to 50 no ?

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• WeeChat version: WeeChat 2.9-dev (git: v2.8-14-ga072d769f)
• OS, distribution and version: Debian 10

[pascalpoitras]

this is not caused by the split, without any split it does the same (with different number)

[pascalpoitras]

still not working when there is a split

[flashcode]

In fact the way to check if the new bar size is OK is wrong, we should simulate a resize for all windows and if it fails, do not apply anything.