BUG #14941: Vacuum crashes

The following bug has been logged on the website:

Bug reference:      14941
Logged by:          Lyes Ameddah
Email address:      lyes.amd@gmail.com
PostgreSQL version: 9.6.0
Operating system:   CentOs 7
Description:

Hello, 

I make a complete empty once a week in an automated way and it happens that
the vacuum is stuck on a table (perhaps another process has a lock first).


The behavior I would like to see is that the void ignores this table and
moves to another instead of being blocked. 

Is it possible to have a solution to this problem please? 
Thank you!