fulltext: remember original query

So far, the fulltext-query structure only saves an canonicalized
upper-cased version of the query. However, if we want to save the
fulltext query to the log (filter presets) or want to restore an old
fulltext query, we have to store the original query. We don't want
to confront the user with the mangled upper-cased version.
Therefore, also save the original version.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>

core/fulltext.cpp

@@ -278,6 +278,7 @@ FullTextResult FullText::find(const FullTextQuery &q, StringFilterMode mode) con
 
 FullTextQuery &FullTextQuery::operator=(const QString &s)
 {
+	originalQuery = s;
 	words.clear();
 	tokenize(s, words);
 	return *this;

core/fulltext.h

@@ -45,6 +45,7 @@ enum class StringFilterMode {
 // A fulltext query. Basically a list of normalized words we search for
 struct FullTextQuery {
 	std::vector<QString> words;
+	QString originalQuery; // Remember original query, which will be written to the log
 	FullTextQuery &operator=(const QString &); // Initialize by assigning a user-provided search string
 	bool doit() const; // true if we should to a fulltext search
 };