BUG diffract.forward does not return a list

[prjemian]

In demo notebook https://blueskyproject.io/hklpy/examples/notebooks/geo_e4cv.html,

That's not a list. After the forward() computation, the list is available: diffract.calc.engine.solutions.

@apsIEX, @hao247 Thanks for the report.

[prjemian]

Note the difference between fourc.forward() (the default position solution) and fourc.calc.forward() (the list of possible position solutions).

[prjemian]

hklpy/hkl/diffract.py

Lines 308 to 312 in 9206e67

	if decision_fcn is None:
	# the default decision function is to just grab solution #1:
	decision_fcn = calc.default_decision_function
	self._decision_fcn = decision_fcn

hklpy/hkl/calc.py

Lines 82 to 84 in 9206e67

	def default_decision_function(position, solutions):
	"""The default decision function - returns the first solution."""
	return solutions[0]

[prjemian]

As written, the notebook is correct, but the initial report does not show the full table. Here's the larger context:

The notebook could state clearly which of the two methods will be used.