[Bug]: OSM tiles displaced on a project

[Gustry]

What is the bug? (in English)

We can see OSM tiles are not displayed correctly on the map

Steps to reproduce the issue

1. Visit https://sandbox.lizmap.com/lizmap_3_8/index.php/view/map?repository=tests&project=n_to_m_relations
2. Unzoom the maximum you can
3. Check the tiles on the map

Versions, safeguards, check summary etc

Versions :

• Lizmap Web Client : 3.8.3-pre
• Lizmap plugin : master
• QGIS Desktop : 3.34.11
• QGIS Server : 3.34.11
• Py-QGIS-Server : 1.9.1
• QGIS Server plugin atlasprint : 3.4.2-alpha
• QGIS Server plugin lizmap_server : 2.11.2-alpha
• QGIS Server plugin wfsOutputExtension : 1.8.3-alpha

List of Lizmap Web Client modules :

* lizmapdemo : 3.6.0a1

List of safeguards :

* Mode : normal
* Allow parent folder : yes
* Number of parent : 2 folder(s)
* Prevent other drive : no
* Prevent PG service : no
* Prevent PG Auth DB : yes
* Force PG user&pass : yes
* Prevent ECW : yes

Check Lizmap plugin

• I have done the step just before in the Lizmap QGIS desktop plugin before opening this ticket. Otherwise, my ticket is not considered valid and might get closed.

Operating system

Ubuntu 24.04

Browsers

Firefox

Browsers version

115.14.0esr (64-bit)

Relevant log output

No response