deegree WMS GFI through QGIS desktop client results in error message

[julianzz98]

Requirements:

1. A deegree WMS (1.3.0) with vector data is configured and added as a connection in the QGIS desktop client
2. The vector layer is imported into the layer panel (the default CRS is EPSG:4326)

• As a test, a GFI is done through the QGIS client and results in a valid response

4. The CRS is changed for the whole QGIS project to another CRS, i.e. EPSG:25832

• Another GFI is done through the QGIS client, this time it results in the following error:

<ServiceExceptionReport>
  <ServiceException code="InvalidPoint">
    The I/J parameters do not fit in the image dimensions.
  </ServiceException>
</ServiceExceptionReport>

In my test case, the I/J parameters were set with [0,1] with a height and width parameter of [2,2] configured. Nevertheless, changing the I/J parameters to the value of [1,1] gives out a valid response.

Still, the OGC WMS 1.3.0 specification specifies that

the value of I shall be between 0 and the maximum value of the i axis;
the value of J shall be between 0 and the maximum value of the j axis;

as well as

The point (I,J) represents the centre of the indicated pixel.
If the value of I or of J is invalid, the server shall issue a service exception (code = InvalidPoint).