[BUG]: When loading a WFS schema where multiple types use the same namespace prefix, the namespaces get confused

[JohannaOtt]

Describe the bug
When loading a WFS (for example this one) where multiple types use the same namespace prefix, the namespaces get confused and the types are assigned to the wrong namespaces.

To Reproduce
Steps to reproduce the behavior:

1. Go to 'Import source schema'
2. Click on 'From WFS'
3. Provide the WFS linked above for the Capabilties
4. Click 'Next'
5. The namespaces sometimes contain two types although every type is using its own namespace.

Expected behavior
Every type should be assigned to the namespace it uses.

Screenshots