move quoting hack to wiki loader

The bad quotes around the type for special phrases
specifically occure in the Wiki pages, so it should be
removed by the loader and not in the generic SpecialPhrase
object.

nominatim/tools/special_phrases/sp_wiki_loader.py

@@ -37,6 +37,8 @@ class SPWikiLoader:
         self.occurence_pattern = re.compile(
             r'\| *([^\|]+) *\|\| *([^\|]+) *\|\| *([^\|]+) *\|\| *([^\|]+) *\|\| *([\-YN])'
         )
+        # Hack around a bug where building=yes was imported with quotes into the wiki
+        self.type_fix_pattern = re.compile(r'\"|"')
         self._load_languages()
 
 
@@ -52,7 +54,10 @@ class SPWikiLoader:
             matches = self.occurence_pattern.findall(loaded_xml)
 
             for match in matches:
-                yield SpecialPhrase(match[0], match[1], match[2], match[3])
+                yield SpecialPhrase(match[0],
+                                    match[1],
+                                    self.type_fix_pattern.sub('', match[2]),
+                                    match[3])
 
 
     def _load_languages(self):