[LyX/master] Do not use rand() to set a BranchList id

[Pavel Sanda]

On Fri, Sep 13, 2024 at 11:14:13AM +0200, Jean-Marc Lasgouttes wrote:
> Le 13/09/2024 ?? 11:11, Jean-Marc Lasgouttes a écrit :
> > commit 9f40eaee15d53ce418a728d3ff3716541d35775f
> > Author: Jean-Marc Lasgouttes <lasgouttes at lyx.org>
> > Date:   Fri Sep 13 11:07:05 2024 +0200
> > 
> >      Do not use rand() to set a BranchList id
> >      Use a simple counting instead, beecause Coverity complains that rand()
> >      is not safe, and counting is siimpler anyway.

What does it mean rand is not safe? Thread safe? Or not necessarily giving 
unique result?

Pavel