Update SVGImageView.m

[markm68k]

• Ensure that pathBySettingSVGAttributes: always returns a non-null value. • If [self copy] returns nil, return self or create a new instance as a fallback. • Add a comment explaining the fallback.

Thank you for submitting a PR for PocketSVG 😀

• If you're fixing an issue, please briefly describe the current behaviour and the new behaviour. If you're addressing an open issue, please link to it.

• If you're introducing a new feature, please briefly describe the new behavior and provide code + sample SVGs for us to see it in action.

Please also add that as an entry in our CHANGELOG.md file to explain your changes and credit yourself. Add the entry in the appropriate section (New Features / Fixes / Internal Change / Breaking Change) under Unreleased. Add links to your GitHub profile and to the related PR and issue after your description. Be part of history.

[markm68k]

Oops, I made a mistake with my comments.

• Ensure that fillColor and strokeColor do not return nil. If _svgLayer.fillColor (or .strokeColor) is nil, return a default color such as [PSVGColor blackColor], or whatever is appropriate for your usage.
• This change ensures the methods always return a non-nil value and prevents analyzer complaints.

[markm68k]

Addresses open issue #230

[arielelkin]

thanks for your patience! this has now been fixed via 1f5b96a