beta 4.1.6.137 midle click problem...

[temp123312]

I open multi login tabs by mouse midle click on to the tabs free field, and in new beta some times it doesen't work, sometimes it's open more of multi login tab when i trying to close tabs, (it shud close tab if I do midle click on tab).
Sometimes it's work correct...

[temp123312]

+ when i open new multi login tab, it close my normal "new tab" (I using script to close other new tabs) in stable versione all fine.

[Admini]

Thanks for your feedback.
This should be a bug and we will look into it.