Object processors on terminal match rules not called

[igordejanovic]

Issue found in SO post

To reproduce:

from textx import metamodel_from_str

grammar = '''
Model: commands*=Command;
Command: MyNumber;
MyNumber: MyFloat | INT;
MyFloat: /[+-]?(((\d+\.(\d*)?|\.\d+)([eE][+-]?\d+)?)|((\d+)([eE][+-]?\d+)))(?<=[\w\.])(?![\w\.])/;
'''

mm = metamodel_from_str(grammar)
mm.register_obj_processors({'MyFloat': lambda x: float(x)})

model = mm.model_from_str('''
10
10.5
''')
assert type(model.commands[0]) is int
assert type(model.commands[1]) is float