Minor bug: klicking 'open sequence' button in playlist reopens playlist.

[DotNet-ImaginationSquare]

More than often whenever I klick the 'open sequence' button in a playlist, the first time I just opens the playlist again in a new tab, then, when I klick it again in the new tab, then it will open the sequence like I asked it to in another new tab.

[tbyunomi]

This doesn't happen to me for somereason