replaceShape fails if an existing shape doesn't exist

[chris-lesage]

scripts/mgear/rigbits/init.py

In the function replaceShape() line 410. If a pre-existing shape doesn't exist on the target node, it fails with an error and then leaves remaining duplicate nodes from the function leftover in the scene. This is because the variable cnx is only declared if a shape is found. But cnx gets called outside the scope of "if shape:"

Suggested fix.
Declare "cnx = None" or "cnx = []" at the beginning of the function.
Then, if a shape doesn't already exist, it will just add it to the transform.

(I'll do a PR in December if no one else gets to it.)

[miquelcampos]

Thanks @chris-lesage I will do the suggested fix on Monday :)