change in what Cypher allows as an unquoted property key

core/src/main/java/apoc/util/Util.java

@@ -674,7 +674,7 @@ public class Util {
     }
 
     public static String quote(String var) {
-        return SourceVersion.isIdentifier(var) && !var.startsWith("$") ? var : '`' + var + '`';
+        return SourceVersion.isIdentifier(var) && !var.contains("$") ? var : '`' + var + '`';
     }
 
     public static String sanitizeAndQuote(String var) {

core/src/test/java/apoc/util/UtilQuoteTest.java

@@ -26,7 +26,7 @@ public class UtilQuoteTest {
                 { "_id", true },
                 { "some_var", true },
                 { "$lock", false },
-                { "has$inside", true },
+                { "has$inside", false },
                 { "ähhh", true },
                 { "rübe", true },
                 { "rådhuset", true },