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Steps to reproduce on demo data.
Workspace, Datastore and nyc Layer setup according to http://docs.geoserver.org/latest/en/user/gettingstarted/shapefile-quickstart/index.html
Create two styles as below.
Associate the styles to layer: nyc_roads.
Queries from browser:
1: return two road sections from roads other than Broadway
http://192.168.96.33:8080/geoserver/nyc/wms?SERVICE=WMS&VERSION=1.1.1&REQUEST=GetFeatureInfo&FORMAT=image%2Fpng&TRANSPARENT=true&QUERY_LAYERS=nyc%3Anyc_roads&STYLES=nyc_BROADWAY&LAYERS=nyc%3Anyc_roads&INFO_FORMAT=text%2Fhtml&FEATURE_COUNT=50&X=50&Y=50&SRS=EPSG%3A2908&WIDTH=101&HEIGHT=101&BBOX=986942.4708652133%2C213077.2430648932%2C988870.345253427%2C215005.11745310682
2: return two road sections from Broadway
http://192.168.96.33:8080/geoserver/nyc/wms?SERVICE=WMS&VERSION=1.1.1&REQUEST=GetFeatureInfo&FORMAT=image%2Fpng&TRANSPARENT=true&QUERY_LAYERS=nyc%3Anyc_roads&STYLES=nyc_BROADWAY&LAYERS=nyc%3Anyc_roads&INFO_FORMAT=text%2Fhtml&FEATURE_COUNT=50&X=50&Y=50&SRS=EPSG%3A2908&WIDTH=101&HEIGHT=101&BBOX=986942.4708652133%2C213077.2430648932%2C988870.345253427%2C215005.11745310682
3: SHOULD return all 4 sections, but only returns Broadway sections twice
http://192.168.96.33:8080/geoserver/nyc/wms?SERVICE=WMS&VERSION=1.1.1&REQUEST=GetFeatureInfo&FORMAT=image%2Fpng&TRANSPARENT=true&QUERY_LAYERS=nyc%3Anyc_roads,nyc%3Anyc_roads&STYLES=nyc_BROADWAY,nyc_not_BROADWAY&LAYERS=nyc%3Anyc_roads,nyc%3Anyc_roads&INFO_FORMAT=text%2Fhtml&FEATURE_COUNT=50&X=50&Y=50&SRS=EPSG%3A2908&WIDTH=101&HEIGHT=101&BBOX=986942.4708652133%2C213077.2430648932%2C988870.345253427%2C215005.11745310682
4: SHOULD return all 4 sections, but only return not Broadway sections twice
http://192.168.96.33:8080/geoserver/nyc/wms?SERVICE=WMS&VERSION=1.1.1&REQUEST=GetFeatureInfo&FORMAT=image%2Fpng&TRANSPARENT=true&QUERY_LAYERS=nyc%3Anyc_roads,nyc%3Anyc_roads&STYLES=nyc_not_BROADWAY,nyc_BROADWAY&LAYERS=nyc%3Anyc_roads,nyc%3Anyc_roads&INFO_FORMAT=text%2Fhtml&FEATURE_COUNT=50&X=50&Y=50&SRS=EPSG%3A2908&WIDTH=101&HEIGHT=101&BBOX=986942.4708652133%2C213077.2430648932%2C988870.345253427%2C215005.11745310682
nyc_BROADWAY with SLD content:
<?xml version=“1.0” encoding=“ISO-8859-1”?>
<StyledLayerDescriptor version=“1.0.0”
xsi:schemaLocation=“http://www.opengis.net/sld http://schemas.opengis.net/sld/1.0.0/StyledLayerDescriptor.xsd”
xmlns=“http://www.opengis.net/sld” xmlns:ogc=“http://www.opengis.net/ogc”
xmlns:xlink=“http://www.w3.org/1999/xlink” xmlns:xsi=“http://www.w3.org/2001/XMLSchema-instance”>
<NamedLayer>
<Name>Broadway only</Name>
<UserStyle>
<Title>Broadway only</Title>
<FeatureTypeStyle>
<Rule>
<Title>Broadway only</Title>
<Filter>
<PropertyIsEqualTo>
<PropertyName>name</PropertyName>
<Literal>BROADWAY</Literal>
</PropertyIsEqualTo>
</Filter>
<LineSymbolizer>
<Stroke>
<CssParameter name=“stroke”>#ff0000</CssParameter>
<CssParameter name=“stroke-width”>3</CssParameter>
</Stroke>
</LineSymbolizer>
</Rule>
</FeatureTypeStyle>
</UserStyle>
</NamedLayer>
</StyledLayerDescriptor>
nyc_not_BROADWAY with SLD content:
<?xml version=“1.0” encoding=“ISO-8859-1”?>
<StyledLayerDescriptor version=“1.0.0”
xsi:schemaLocation=“http://www.opengis.net/sld http://schemas.opengis.net/sld/1.0.0/StyledLayerDescriptor.xsd”
xmlns=“http://www.opengis.net/sld” xmlns:ogc=“http://www.opengis.net/ogc”
xmlns:xlink=“http://www.w3.org/1999/xlink” xmlns:xsi=“http://www.w3.org/2001/XMLSchema-instance”>
<NamedLayer>
<Name>Broadway only</Name>
<UserStyle>
<Title>Broadway only</Title>
<FeatureTypeStyle>
<Rule>
<Title>Broadway only</Title>
<Filter>
<PropertyIsNotEqualTo>
<PropertyName>name</PropertyName>
<Literal>BROADWAY</Literal>
</PropertyIsNotEqualTo>
</Filter>
<LineSymbolizer>
<Stroke>
<CssParameter name=“stroke”>#ff0000</CssParameter>
<CssParameter name=“stroke-width”>3</CssParameter>
</Stroke>
</LineSymbolizer>
</Rule>
</FeatureTypeStyle>
</UserStyle>
</NamedLayer>
</StyledLayerDescriptor>
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