SC2317 false positive upon: return 1 || exit 1

[smyril42]

For bugs with existing features

• Rule Id: SC2317
• My shellcheck version: 0.10.0
• The rule's wiki page does not already cover this
• I tried on https://www.shellcheck.net/ and verified that this is still a problem on the latest commit

Here's a snippet or screenshot that shows the problem:

#!/bin/sh
return 1 || exit 1

or

#!/bin/sh
return 1 2>/dev/null || exit 1

Here's what shellcheck currently says:

return 1 || exit 1
            ^-- [SC2317](https://www.shellcheck.net/wiki/SC2317) (info): Command appears to be unreachable. Check usage (or ignore if invoked indirectly).

Here's what I wanted or expected to see:

This should return 1 if in a function and exit otherwise (when return fails).
It should not raise any warnings.