[Bug]: Mutually Exclusive Group not correctly loaded in LWC 3.7

[bsaglio2001]

What is the bug?

In one of my QGS project, one group containing several layers (more precisely several "groups as a layer") was configured as a "Mutually Exclusive Group". In the lizmap plugin, I set visible (checked) only one layer inside this group to be loaded visible.

Here is the configuration in QGIS.

Only one layer inside this group is checked on loading

Here is the result in LWC 3.6. Everything works fine.

Here is the result in LWC 3.7. All layers inside the "Mutually Exclusive Group" are checked after loading. Curiously, after I uncheck all, then the behaviour of this group is correct.

Steps to reproduce the issue

1. Load a project with a Mutually Exclusive Group into LWC 3.7
2. Control the result

Versions, safeguards, check summary etc

Versions :

• Lizmap Web Client : 3.7.3-pre.7098
• Lizmap plugin : 4.1.5
• QGIS Desktop : 3.28.13
• Lizmap.com : Yes
• QGIS Server : 3.28.14
• Py-QGIS-Server : 1.8.8
• QGIS Server plugin atlasprint : 3.3.2
• QGIS Server plugin cadastre : 1.19.0
• QGIS Server plugin lizmap_server : 2.8.2
• QGIS Server plugin wfsOutputExtension : 1.8.0

List of safeguards :

* Mode : safe * Allow parent folder : no * Prevent other drive : yes * Prevent PG service : yes * Prevent PG Auth DB : yes * Force PG user&pass : yes * Prevent ECW : yes

Check Lizmap plugin

• [X] 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

Windows 10 Business

Browsers

Firefox

Browsers version

Firefox 121.0.1

Relevant log output

No response

[nboisteault]

You need to check layers as visible only in the group you want to be visible at startup. I note that it has to be improved.