[RCD] Problem when cancelling download of attachment RC1

[Joan]

I already posted that to the forums, but didn't get any answer
Whenever I cancel the download of an attachment (i.e. any .zip about
4Mb or larger), roundcube remains unresponsive for a while.
It seems that is downloading it in background and until it finishes
you have to wait, so for the 4Mb file I was testing i have to wait for
about 30 seconds before I can continue working.
Is it solved in the SVN?
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