Errors when launching Vim inside tmux

In OS X, when I launch `vim`, or even `vim -u NONE`, within a tmux session,
the following messages are logged:

16/03/16 10:49:13,539 vim[11605]: LaunchServices: received
XPC_ERROR_CONNECTION_INTERRUPTED trying to map database
16/03/16 10:49:13,539 vim[11605]: LaunchServices: Database mapping
failed with result -10822, retrying
16/03/16 10:49:13,539 vim[11605]: LaunchServices: received
XPC_ERROR_CONNECTION_INTERRUPTED trying to map database
16/03/16 10:49:13,571 vim[11605]: LaunchServices: received
XPC_ERROR_CONNECTION_INTERRUPTED trying to map database
16/03/16 10:49:13,572 vim[11605]: LaunchServices: Database mapping
failed with result -10822, retrying
16/03/16 10:49:13,572 vim[11605]: LaunchServices: received
XPC_ERROR_CONNECTION_INTERRUPTED trying to map database

I'd like to know whether it depends on my specific setup. Does anyone
see the same?

Version details:

Vim 7.4 1-1525
tmux 2.1

both installed with Homebrew.

Nicola


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