Weird issue with q.op=AND

[Shamik Bandopadhyay]

Hi,

  I'm facing a weird problem while using q.op=AND condition. Looks like it
gets into some conflict if I use multiple "appends" condition in
conjunction. It works as long as I've one filtering condition in appends.

<lst name="appends">
       <str name="fq">Source:"TestHelp"</str>
</lst>

Now, the moment I add an additional parameter, search stops returning any
result.

<lst name="appends">
       <str name="fq">Source:"TestHelp" | Source:"TestHelp2"</str>
</lst>

If I remove "q.op=AND" from request handler, I get results back. Data is
present for both the Source I'm using, so it's not a filtering issue. Even
a blank query fails to return data.

Here's my request handler.

<requestHandler name="/testhandler" class="solr.SearchHandler">
<lst name="defaults">
<str name="echoParams">explicit</str>
<float name="tie">0.01</float>
<str name="wt">velocity</str>
<str name="v.template">browse</str>
<str name="v.contentType">text/html;charset=UTF-8</str>
<str name="v.layout">layout</str>
<str name="v.channel">testhandler</str>
<str name="defType">edismax</str>
<str name="q.op">AND</str>
<str name="q.alt">*:*</str>
<str name="rows">15</str>
<str name="fl">id,url,Source2,text</str>
<str name="qf">text^1.5 title^2</str>
<str name="bq">Source:TestHelp^3 Source:TestHelp2^0.85</str>
<str name="bf">recip(ms(NOW/DAY,PublishDate),3.16e-11,1,1)^2.0</str>
<str name="df">text</str>

<!-- facets -->
<str name="facet">on</str>
<str name="facet.mincount">1</str>
<str name="facet.limit">100</str>
<str name="facet.field">language</str>
<str name="facet.field">Source</str>
 <!-- Highlighting defaults -->
<str name="hl">true</str>
<str name="hl.fl">text title</str>
<str name="f.text.hl.fragsize">250</str>
<str name="f.text.hl.alternateField">ShortDesc</str>

<!-- Spell check settings -->
<str name="spellcheck">true</str>
<str name="spellcheck.dictionary">default</str>
<str name="spellcheck.collate">true</str>
<str name="spellcheck.onlyMorePopular">false</str>
<str name="spellcheck.extendedResults">false</str>
<str name="spellcheck.count">1</str>

                       <!-- Shard Tolerant -->
                        <str name="shards.tolerant">true</str>
</lst>
<lst name="appends">
<str name="fq">Source:"TestHelp" | Source2:"TestHelp2"</str>
</lst>
<arr name="last-components">
<str>spellcheck</str>
</arr>
</requestHandler>

Not sure what's going wrong. I'm using a SolrCloud environment with 2
shards having a replica each.

Any pointers will be appreciated.

Thanks,
Shamik