Spellchecker suggests Tokens

[Snubbel]

Hello,
I have a problem getting stated with SolrDirectSpellChecker. 
I use NGramFilterFactory to index and query for strings of length greater
than 3. So, if I index the word
"aQuiteLongWord" I can search for "long" and get the result.

Now I'm adding the DirectSolrSpellChecker. And when searching for
"aQuitLongWord" I get suggestions for uit, itL, ngw and so on, which doesn't
make any sense, obviously ;)

How can I keep the Spellchecker from searching for substitutions of Tokens
of the searchstring?

Here is my schema snippet of the fieldtype I use:
<fieldType name="text_general" class="solr.TextField"
positionIncrementGap="100">
            <analyzer type="index">
                <tokenizer class="solr.KeywordTokenizerFactory"/>
                <filter class="solr.LowerCaseFilterFactory"/>
                <filter class="solr.NGramFilterFactory" minGramSize=""
maxGramSize="30"/>
                
                <charFilter class="solr.MappingCharFilterFactory"
mapping="mapping-GermanFoldToASCII.txt"/>
                
            </analyzer>
            <analyzer type="query">
                <tokenizer class="solr.KeywordTokenizerFactory"/>
                <filter class="solr.LowerCaseFilterFactory"/>
                
                <filter class="solr.NGramFilterFactory" minGramSize="3"
maxGramSize="30"/>
                <charFilter class="solr.MappingCharFilterFactory"
mapping="mapping-GermanFoldToASCII.txt"/>
           </analyzer>
</fieldType>

And the solrconfig:

    <searchComponent name="spellcheck" class="solr.SpellCheckComponent">
        <str name="queryAnalyzerFieldType">text_general</str>
        <lst name="spellchecker">
            <str name="name">default</str>
            <str name="field">text</str>
            <str name="classname">solr.DirectSolrSpellChecker</str>
            <str name="distanceMeasure">internal</str>
            <float name="accuracy">0.8</float>
            <int name="maxEdits">2</int>
            <int name="minPrefix">1</int>
            <int name="maxInspections">100</int>
            <int name="minQueryLength">5</int>
            <float name="maxQueryFrequency">0.5</float>
            <float name="thresholdTokenFrequency">.0001</float>
        </lst>
</searchComponent>

 <requestHandler name="/select" class="solr.SearchHandler">
        <lst name="defaults">
            <str name="omitHeader">true</str>
            <str name="df">text</str>
            <str name="q.op">AND</str>
            
            <str name="df">text</str>
            
            <str name="spellcheck.dictionary">default</str>
            
            <str name="spellcheck">on</str>
            <str name="spellcheck.extendedResults">true</str>
            <str name="spellcheck.count">100</str>
            
            <str name="spellcheck.maxResultsForSuggest">100</str>
            <str name="spellcheck.collate">false</str>
        </lst>
        <arr name="last-components">
            <str>spellcheck</str>
        </arr>
</requestHandler>



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