Bug [2521925] ArrayStoreException in ArrayUtils.append()

Finally reproduced this one - it is only reproducible in the 3.2 trunk, not in the 3.1 branch.

I’m working on it now.

Strangely, the two bug reports where created using Vassal version 3.2.0-svn5061. How did an extremely recent 3.2 release get out into the wild?