Sara Arjona 734b198fd3 MDL-64715 message: add support for self conversations ... Added new MESSAGE_CONVERSATION_TYPE_SELF type for self-conversations and upgraded legacy self-conversations to the new type, removing repeated members in the message_conversation_members table. Besides, from now, a self-conversation will be created by default for all the existing users. All the self-conversations have been also starred and a default message will be displayed always to explain how to use them.		2019-04-15 20:17:54 +02:00
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migrate_message_data.php	MDL-64715 message: add support for self conversations	2019-04-15 20:17:54 +02:00