bug in the file with the patch update

Hello main developers.

I found a mistake ( Duplicate key name 'date' ) in Dolphin-Patch-v.7.0.5.zip/upgrade/files/7.0.4-7.0.5/sql.sql

ALTER TABLE `sys_sessions` ADD INDEX `date` (`date`);

Fix It, Please.

This is unusual situation. It was no such key by default, if you have such error then the key was added manually by someone before you applied the patch.

I suggest to remove `date` key from `sys_sessions` table, if there is one, and then apply patch.