Incorrect parsing of whisper triggered by a Macro

[pveiga2]

Description:
In WoW Classic, imagine you use macros to send whispers - for example to notify a team member about a spell rotation. WIM seems to be parsing each of these whispers twice every time:

• the first time correctly, generating a window with the given message to the recipient player;
• A second time incorrectly, concatenating the player name + message and assuming that as the recipient name.

To Reproduce:

1. Login WoW Classic and go to the Macros menu (Main Menu -> Macros)
2. Create a new Macro, and enter a simple whisper command like:
   /w your-name You are the next to cast.
3. Save the macro and drag it to your action bar.
4. Click the macro.

Expected behavior:
WIM should not show a second window with the message text as part of a recipient's name.

Screenshot:

Game Version:
WoW Classic v1.13.4.33920

Additional info:
Thank you guys a lot for your amazing addon, I could not imagine chatting without it!!