plugin XEP-0115: use the new raw_values from Tx-XMPP:

Libervia calls Tx-XMPP `typeCheck` on disco info reception to check and normalize values.
In the case of XEP-0115 this cause trouve as the normalization is lossy, and change the
type of some fields (booleans, JIDs). The new `raw_values` property has been added in
Tx-XMPP v0.15 to retrieve original `str` value, so this now used to build the hash.

fix 486

libervia/backend/plugins/plugin_xep_0115.py

@@ -346,8 +346,8 @@ class XEP_0115:
                 # Step 7.c.a: append var attribute followed by '<'
                 s.append(field.var.encode("utf-8"))
                 s.append(b"<")
-                # Step 7.c.b: sort values
-                values = [v.encode("utf-8") for v in field.values]
+                # Step 7.c.b: sort values (use raw XML character data per spec)
+                values = [v.encode("utf-8") for v in field.raw_values]
                 values.sort()
                 # Step 7.c.c: append each value followed by '<'
                 for value in values: