If a source has a comment and a single component, the component is not displayed

[Alkis Georgopoulos]

Ubuntu 14.04.3, software-properties-gtk 0.92.37.3

If I have this in my sources.list.d/some-source.list:
deb http://ppa.launchpad.net/ts.sch.gr/ppa/ubuntu trusty main #My repository

Then "main" does not appear in the list box in the software-properties-gtk dialog → Other Software tab:
> My repository trusty
> http://ppa.launchpad.net/ts.sch.gr/ppa/ubuntu

If I have 2 components, e.g. "main non-free", then both appear OK:
> My repository trusty main non-free
> http://ppa.launchpad.net/ts.sch.gr/ppa/ubuntu

If I again put 1 component there, but remove the comment, then the component does appear on a single line:
> http://ppa.launchpad.net/ts.sch.gr/ppa/ubuntu trusty main