[TxMt] Spell checking not working in text.html.php strings

I've noticed spell checking isn't working in text.html.php strings. It is working in source.js.jquery, however. See the examples in the attached screenshots.

Here are the bundle preferences that seem relevant (Source and PHP; the HTML bundle doesn't seem to have any that effect spelling).

Where should I look to see where this could be going wrong?

Thanks, Quinn

Source.tmbundle/Preferences/Enable spell checking for strings.plist { name = "Spell Checking: Enable for Strings"; scope = "^ source string.quoted - punctuation"; settings = { spellChecking = 1; }; }

Source.tmbundle/Preferences/Disable spell checking for all.plist { name = "Spell Checking: Disable for Source"; scope = "source, constant, keyword, storage, support, variable"; settings = { spellChecking = 0; }; }

PHP.tmbundle/Preferences/Disable spellcheck in require.tmPreferences { name = "Disable spellcheck in require"; scope = "meta.include.php string.quoted"; settings = { spellChecking = 0; }; }

PHP.tmbundle/Preferences/Enable Spellchecking for Docblocks.tmPreferences { name = "Enable Spellchecking for Docblocks"; scope = "comment.block.documentation.phpdoc.php"; settings = { spellChecking = 1; }; }