5.10.1 64-bit. And yes, it seems to be fixed in later versions.

With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday'
Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.

In reply to Re^2: substr outside of string? by BrowserUk
in thread substr outside of string? (Updated: Fixed in later builds.) by BrowserUk

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