Resuming from a state file does not update parameter dimensiom

[jordandouglas]

For example, if the xml file specifies that a parameter has dimension 5, and it has 6 in the state file, then resuming will keep its dimension on 5.

This is a problem for reversible jump MCMC where a parameter dimension can change from operators

The problematic code is here below. It can be fixed by calling this.setDimension(source.getDimension())

@Override
public void assignFromFragile(final StateNode other) {
    @SuppressWarnings("unchecked") final Parameter.Base<T> source = (Parameter.Base<T>) other;
    System.arraycopy(source.values, 0, values, 0, Math.min(values.length, source.getDimension()));
    Arrays.fill(m_bIsDirty, false);
}

https://github.com/CompEvol/beast2/blob/master/src/beast/base/inference/parameter/Parameter.java

[jordandouglas]

Fixed with commit

3916ce5