Update 'hydro-operator-bkw.json'

Query elements where "operator" contains "BKW":

(node["operator"~"BKW"]["generator:source"="hydro"];
node["operator"~"BKW"]["plant:source"="hydro"];
way["operator"~"BKW"]["generator:source"="hydro"];
way["operator"~"BKW"]["plant:source"="hydro"];
relation["operator"~"BKW"]["generator:source"="hydro"];
relation["operator"~"BKW"]["plant:source"="hydro"];)

N.B.: case insensitive does not work: node["operator"~"BKW",i]

hydro-operator-bkw.json

@@ -7,12 +7,12 @@
     },
     "query": {
         "7": [
-            "(node[\"generator:source\"=\"hydro\"][\"operator\"=\"BKW\"];",
-            "node[\"plant:source\"=\"hydro\"][\"operator\"=\"BKW\"];",
-            "way[\"generator:source\"=\"hydro\"][\"operator\"=\"BKW\"];",
-            "way[\"plant:source\"=\"hydro\"][\"operator\"=\"BKW\"];",
-            "relation[\"generator:source\"=\"hydro\"][\"operator\"=\"BKW\"];",
-            "relation[\"plant:source\"=\"hydro\"][\"operator\"=\"BKW\"];)"
+            "(node[\"operator\"~\"BKW\"][\"generator:source\"=\"hydro\"];",
+            "node[\"operator\"~\"BKW\"][\"plant:source\"=\"hydro\"];",
+            "way[\"operator\"~\"BKW\"][\"generator:source\"=\"hydro\"];",
+            "way[\"operator\"~\"BKW\"][\"plant:source\"=\"hydro\"];",
+            "relation[\"operator\"~\"BKW\"][\"generator:source\"=\"hydro\"];",
+            "relation[\"operator\"~\"BKW\"][\"plant:source\"=\"hydro\"];)"
         ]
     }
 }