Problem with WFS layers

[doublebyte1]

Steps to reproduce Issue

• Add EmotionalCities WFS connection on QGIS: https://emotional.byteroad.net/geoserver/ows?acceptversions=2.0.0

• Load a WFS layer. Examples of layers with issues: 500Cities_City_11082016, hex350_grid_access2openspace

  
  WARNING    WFS exception report (code=NoApplicableCode text=java.lang.RuntimeException: org.w3c.dom.DOMException: INVALID_CHARACTER_ERR: An invalid or illegal XML character is specified.
           org.w3c.dom.DOMException: INVALID_CHARACTER_ERR: An invalid or illegal XML character is specified.
           INVALID_CHARACTER_ERR: An invalid or illegal XML character is specified.)

Layer hex350_grid_access2openspace : Download of features for layer camb:hex350_grid_access2openspace failed or partially failed: Server generated an exception in GetFeature response: java.lang.RuntimeException: org.w3c.dom.DOMException: INVALID_CHARACTER_ERR: An invalid or illegal XML character is specified. org.w3c.dom.DOMException: INVALID_CHARACTER_ERR: An invalid or illegal XML character is specified. INVALID_CHARACTER_ERR: An invalid or illegal XML character is specified.. You may attempt reloading the layer with F5

[doublebyte1]

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