Cannot "save world to..." on Ubuntu-25.10 or Ubuntu-24.04

[krpi8429]

Describe the Bug
Cannot "save world to..." on Ubuntu-25.10 or Ubuntu-24.04.3 loaded from snap. I get the save dialog but the file name field is not editable.

Steps to Reproduce
File->"Save World To..."

Expected behavior
The default new file name is the same as the existing world. That's to be expected. But then, I expect to be able to edit in the new file name.

Screenshots
There's really nothing to see here. The dialog presents. I simply can't change the file name.

System

• Operating System: Ubuntu-25.10 or Ubuntu-24.04.3. x86_64
• Graphics Card: Intel® Iris® Xe Graphics (TGL GT2) or AMD Radeon™ R3 Graphics

Additional context
none

[krpi8429]

Loaded from deb from cyberbotics works correctly on both Ubuntu-25.10 and Ubuntu-24.04.3. So that's a workaround.