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Q2A version: 1.7
Which problem specifically are you referring to? There were some fixes in 1.7.3 for these.
Yes, Scott. But I would not like to upgrade now. I just need to fix this problem.

I only plan to add the lines in version 1.7 on my site.
I found:
Can I cause some problem when adding these lines in 1.7?

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The best solution is to upgrade to v1.7.4. Upgrades on the 1.7.* line are bug fixes rather than new features so it's perfectly safe.

But if you really only want the emoji changes then yes, the commit you linked is the one you need. As far as I can see and recall that is the only relevant commit.

You should also integrate the changes here: https://github.com/q2a/question2answer/commit/fd628cf33ad71be01f3c9b7b144e5a5f53d9e57d

which is an important security fix.
Thank you so much, Scott! :)