I am using Solr version 8.8.1 in a docker container. I use an address query system based on a csv file. I want to get a city in relation to the street name. The fields in my managed-schema are looking like this:

    <fieldType name="text_suggest" class="solr.TextField" positionIncrementGap="100">
      <analyzer>
       <tokenizer class="solr.KeywordTokenizerFactory"/>
                <filter class="solr.LowerCaseFilterFactory"/>
       </analyzer>
    </fieldType>

    <field name="sugAddress" type="text_suggest" multiValued="true" indexed="true" stored="true"/>
    <field name="sugCity" type="text_suggest"  indexed="true" stored="true"/>
     <copyField source="CITY" dest="sugAddress"/>
     <copyField source="POSTCODE" dest="sugAddress"/>
     <copyField source="STREET" dest="sugAddress"/>
     <copyField source="CITY" dest="sugCity"/>

My solrconfig.xml is looking like this:

    <searchComponent name="solr_suggest" class="solr.SuggestComponent">
        <lst name="suggester">
        <str name="name">sugCitySuggester</str>
        <str name="lookupImpl">BlendedInfixLookupFactory</str>
    	<str name="highlight">false</str>
       <str name="dictionaryImpl">DocumentDictionaryFactory</str> 
        <str name="field">sugCity</str>
    	<str name="buildOnOptimize">true</str>
        <str name="weightField">sugAddress</str> 
    	<str name="contextField">sugAddress</str>
        <str name="suggestAnalyzerFieldType">text_suggest</str>
    	<str name="buildOnCommit">true</str>
      </lst>
    </searchComponent>

    <requestHandler name="/suggest" class="solr.SearchHandler" startup="lazy">
      <lst name="defaults">
          <str name="suggest">true</str>
          <str name="suggest.count">10</str>
      </lst>
      <arr name="components">
        <str>solr_suggest</str>
      </arr>
    </requestHandler>

The result of normal query (without suggester) looks like this:

    {
     "sugAddress":["Am Bahndamm",
              "3",
              "3",
              "65432",
              "Testcity"],
            "sugStreet":"Am Bahndamm",
            "sugPostcode":"65432",
            "sugCity":"Testcity",
            "id":"1e470f44-fe3a-4fb9-b71d-ca556a48c55f",
            "_version_":1695636026132791297,
            "NO_FROM":[3],
            "NO_TO":[3],
            "POSTCODE":[65432]
    },
    {
     "sugAddress":["Teststreet",
              "4",
              "4",
              "65432",
              "Testcity"],
            "sugStreet":"Teststreet",
            "sugPostcode":"65432",
            "sugCity":"Testcity",
            "id":"1e470f44-fe3a-4fb9-b71d-ca556a48c55f",
            "_version_":1695636026132791297,
            "NO_FROM":[4],
            "NO_TO":[4],
            "POSTCODE":[65432]
    }

All indexes are build.

The following query brings correctly one result:
http://localhost:8983/solr/addrescore/suggest?suggest=true&suggest.dictionary=sugCitySuggester&suggest.q=Test&suggest.cfq=Teststreet

But the following returns no results:
http://localhost:8983/solr/addrescore/suggest?suggest=true&suggest.dictionary=sugCitySuggester&suggest.q=Test&suggest.cfq=Am%20Bahndamm

There seems to be a problem with spaces in the context query.
Has someone an idea?