Verified and tested on the latest 8.4.x-dev version. Its working fine as per the description added on top.
Here are the test observations:
Without applying any patch on 8.4.x-dev :
1. If user try to reset the password for blocked account the error message appears as:
""The username %email has not been activated or is blocked"
2. If user try to create a new account with same username or email-id error message appears as
"The username %name is already taken.
The email address %email is already taken".
Screenshots attached
However, after applying the patch #54, #60 and #61 getting some error while applying it on the latest version 8.4-x-dev
"can't find file to patch at input line 5
The text leading up to this was:
--------------------------
|diff --git a/modules/user/user.pages.inc b/modules/user/user.pages.inc
|index f21bd13..9c7a8fe 100644
|--- a/modules/user/user.pages.inc
|+++ b/modules/user/user.pages.inc
--------------------------
File to patch: "
Screenshot attached
- It seems the issue is already fixed for the latest version 8.4.x-dev so moving it to RTBC.