Delete a conversation without deleting contact parameters

[Dudule45]

DESCRIPTION

When you want to delete a conversation, it also deletes the contact color, its ringtone and every other related parameters.

STEPS

1. Delete a conversation with contact number 1
2. receive a new message from contact number 1
3. notice its color and ringtone are set to default

EXPECTED

A way to "delete all messages" to have an empty conversation with the contact's parameters fully in order or a way of keeping these parameters if the conversation is deleted.

OBSERVATIONS

Deleting a conversation deletes contact parameters.