Describe the bug

https://talk.tiddlywiki.org/t/does-search-words-have-an-issue-or-do-i-misunderstand/13282/7

We've found an issue with the search operator in combination with the * wildcard for "all fields"
If the tiddler is of type application/pdf and has the search term in its title it will not be found by the filter expression

@ericshulman posted a nice example in the thread linked above that can be used to inspect:

fields:<br>
<$select tiddler="$:/config/fields" multiple>
   <option value="*">* = all fields</option>
   <$list filter="[fields[]sort[]]"><option><<currentTiddler>></option></$list>
</$select><br>
flags:<br>
<$select tiddler="$:/config/flags" multiple>
   <$list filter="literal whitespace regexp words some casesensitive anchored">
      <option><<currentTiddler>></option>
   </$list>
</$select><br>
search:<br>
<$edit-text tag=input tiddler="$:/temp/search/input"/>

<$let fields={{$:/config/fields}} flags={{$:/config/flags}}>
Filter = <$text text=`[search:$(fields)$:$(flags)${$:/temp/search/input}]`/>
<p/>
<$list filter=`[search:$(fields)$:$(flags)${$:/temp/search/input}]`><$link/><br></$list>
</$let>

Expected behavior

I expect that all binary tiddlers are included in the list

To Reproduce

• go to https://tiddlywiki.com
• paste the above example in a new tiddler
• create a new tiddler with "Zorro" in its title
• set "fields" to * in the search tiddler
• set "flags" to words in the search tiddler
• use the search input field in the search tiddler and write "Zorro"
• see that the tiddler with "Zorro" in its title is in the list
• change the type of the "Zorro" tiddler to application/pdf
• notice that it has disappeared from the search results

Screenshots

No response

TiddlyWiki Configuration

• TiddlyWiki v5.3.8

Additional context

No response