pgadmin4 9.15 close when paste from libreoffice calc

[jgustavolara]

Please note that security bugs or issues should be reported to security@pgadmin.org.

Describe the bug
On a Query tool editor, when paste a copy from libreoffice calc, pgadmin application close immediatly y may lose information you is working on

To Reproduce
Use ubuntu 22.04, Open libreoffice calc 7.3,
Pgadmin5 9.15 info:Application Mode:Desktop
Commit: 86a8b16 2026-05-06
Python Version:3.10.12

Steps to reproduce the behavior:

1. Go to Libreoffice calc and type some text in a cell, then Copy cell info
2. Click on your pgadmin4 query tool editor y Paste info
3. See the error, immediatly pgadmin close completly

Expected behavior
Paste information on editor from libreoffice calc app and continue working in the editor normaly

Error message
No message, only pgadmin4 close completly.

Screenshots

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Desktop (please complete the following information):

• OS: [e.g. Windows 10, OSX monterey]
• pgAdmin version: [e.g. 6.15]
• Mode: [e.g Desktop or Server]
• Browser (if running in server mode): [e.g. chrome, safari]
• Package type: [e.g. RPM, DEB, Python, Container, etc.]

Additional context

Add any other context about the problem here.