id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	blockedby	blocking	notify_on_close	platform	project
1039	inconsistent behavior for residue collections	Greg Couch	Eric Pettersen	"Open 3fx2, in the Python Shell:

In:  m = session.models[0]

In:  len(m.residues)
Out: 401
In:  len(m.residues.names)
Out: 401
In:  len(m.residues.polymer_types)
Out: 401
In:  len(m.residues.chains)
Out: 147

I was expecting 401, with some of the chains being None."	defect	assigned	critical		Core				Tom Goddard Conrad Huang				all	ChimeraX