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?