Check for arrays when matching regex

Signed-off-by: Harelon <harel.games@gmail.com>

Author: harelon

src/lokijs.js

@@ -559,6 +559,10 @@
       },
 
       $regex: function (a, b) {
+        if(Array.isArray(a))
+        {
+          return a.some((item) => {return b.test(item)});
+        }
         return b.test(a);
       },