[Add custom asset]: Warning message does not appear when adding an existing contract address

[booleksandra]

Preconditions:

• The extension must be installed and the user must be logged in.

Steps to reproduce :

1. Open the extension
2. Click "+ Add custom asset".
3. Fill in the "Contract address" field
4. Click [Add asset].
5. Repeat steps 2, 3 and 4 (Use the same contact address as you did the first time)

Attachments: Video