fix: lookup topic without force percent decode

* the minirest handler would do it

apps/emqx_management/src/emqx_mgmt_api_topics.erl

@@ -139,9 +139,9 @@ lookup(#{topic := Topic}) ->
 %%%==============================================================================================
 %% internal
 generate_topic(Params = #{<<"topic">> := Topic}) ->
-    Params#{<<"topic">> => uri_string:percent_decode(Topic)};
+    Params#{<<"topic">> => Topic};
 generate_topic(Params = #{topic := Topic}) ->
-    Params#{topic => uri_string:percent_decode(Topic)};
+    Params#{topic => Topic};
 generate_topic(Params) ->
     Params.
 

changes/ce/fix-10801.en.md

@@ -0,0 +1 @@
+Avoid duplicated percent decode the topic name in API `/topics/{topic}` and `/topics`.