Getting a hit on "the}" but not on "the" or "}"

[Steven White]

HI Everyone,

I'm trying to understand why I get a hit when I search for "the}" but not
when I search for "the" (searches are done without the quotes and "the" is
a stopword in my case).

Here is the debugQuery output using "the}":
  "debug": {
    "rawquerystring": "the}",
    "querystring": "the}",
    "parsedquery": "(+DisjunctionMaxQuery(((ALL_FIELDS:the}
ALL_FIELDS:the))~1.0))/no_coord",
    "parsedquery_toString": "+((ALL_FIELDS:the} ALL_FIELDS:the))~1.0",
    "explain": {
      "-1.5.1804": "\n0.14220011 = sum of:\n  0.14220011 =
weight(ALL_FIELDS:the in 0) [DefaultSimilarity], result of:\n    0.14220011
= score(doc=0,freq=2.0), product of:\n      0.51863563 = queryWeight,
product of:\n        2.4816046 = idf(docFreq=4, maxDocs=22)\n
 0.20899205 = queryNorm\n      0.27418116 = fieldWeight in 0, product of:\n
       1.4142135 = tf(freq=2.0), with freq of:\n          2.0 =
termFreq=2.0\n        2.4816046 = idf(docFreq=4, maxDocs=22)\n
 0.078125 = fieldNorm(doc=0)\n",
      "-1.5.3552": "\n0.14220011 = sum of:\n  0.14220011 =
weight(ALL_FIELDS:the in 0) [DefaultSimilarity], result of:\n    0.14220011
= score(doc=0,freq=2.0), product of:\n      0.51863563 = queryWeight,
product of:\n        2.4816046 = idf(docFreq=4, maxDocs=22)\n
 0.20899205 = queryNorm\n      0.27418116 = fieldWeight in 0, product of:\n
       1.4142135 = tf(freq=2.0), with freq of:\n          2.0 =
termFreq=2.0\n        2.4816046 = idf(docFreq=4, maxDocs=22)\n
 0.078125 = fieldNorm(doc=0)\n",
      "-1.5.3554": "\n0.14220011 = sum of:\n  0.14220011 =
weight(ALL_FIELDS:the in 1) [DefaultSimilarity], result of:\n    0.14220011
= score(doc=1,freq=2.0), product of:\n      0.51863563 = queryWeight,
product of:\n        2.4816046 = idf(docFreq=4, maxDocs=22)\n
 0.20899205 = queryNorm\n      0.27418116 = fieldWeight in 1, product of:\n
       1.4142135 = tf(freq=2.0), with freq of:\n          2.0 =
termFreq=2.0\n        2.4816046 = idf(docFreq=4, maxDocs=22)\n
 0.078125 = fieldNorm(doc=1)\n",
      "-1.5.1802": "\n0.1137601 = sum of:\n  0.1137601 =
weight(ALL_FIELDS:the in 0) [DefaultSimilarity], result of:\n    0.1137601
= score(doc=0,freq=2.0), product of:\n      0.51863563 = queryWeight,
product of:\n        2.4816046 = idf(docFreq=4, maxDocs=22)\n
 0.20899205 = queryNorm\n      0.21934493 = fieldWeight in 0, product of:\n
       1.4142135 = tf(freq=2.0), with freq of:\n          2.0 =
termFreq=2.0\n        2.4816046 = idf(docFreq=4, maxDocs=22)\n
 0.0625 = fieldNorm(doc=0)\n"
    },
    "QParser": "ExtendedDismaxQParser",
    "altquerystring": null,
    "boost_queries": null,
    "parsed_boost_queries": [],
    "boostfuncs": null,
    "filter_queries": [
      "ISBN_GROUP_ID:2"
    ],
    "parsed_filter_queries": [
      "ISBN_GROUP_ID:2"
    ],

Here is the debugQuery output using "the"
  "debug": {
    "rawquerystring": "the",
    "querystring": "the",
    "parsedquery": "(+())/no_coord",
    "parsedquery_toString": "+()",
    "explain": {},
    "QParser": "ExtendedDismaxQParser",
    "altquerystring": null,
    "boost_queries": null,
    "parsed_boost_queries": [],
    "boostfuncs": null,
    "filter_queries": [
      "ISBN_GROUP_ID:2"
    ],
    "parsed_filter_queries": [
      "ISBN_GROUP_ID:2"
    ],

As expected, I get no hits when I search for just "}":
  "debug": {
    "rawquerystring": "}",
    "querystring": "}",
    "parsedquery": "(+DisjunctionMaxQuery((ALL_FIELDS:})~1.0))/no_coord",
    "parsedquery_toString": "+(ALL_FIELDS:})~1.0",
    "explain": {},
    "QParser": "ExtendedDismaxQParser",
    "altquerystring": null,
    "boost_queries": null,
    "parsed_boost_queries": [],
    "boostfuncs": null,
    "filter_queries": [
      "ISBN_GROUP_ID:2"
    ],
    "parsed_filter_queries": [
      "ISBN_GROUP_ID:2"
    ],

In case it matters, I'm also getting a hit when I search for "the." or
"the]" or "the/" or "the," or "the=" etc.

Thanks in advanced.

Steve