Growth rate modifier is un-initialized / has outdated value in edge case

[dschlaep]

Function rgroup_Grow: the variable tgmod is un-initialized/has outdated value if s->temp_class == NoSeason:

            if (s->tempclass != NoSeason)
                tgmod = Env.temp_reduction[s->tempclass];

I don't believe that this affects current runs because we have been setting temp_class to 1 WarmSeason or 2 CoolSeason.

Suggested fix: replace above code with

		tgmod = (s->tempclass == NoSeason) ? 1. : Env.temp_reduction[s->tempclass];

[dschlaep]

closed by 18bfac0