(In reply to Magnus Melin [:mkmelin] from comment #6) > Bug 1820203. Looks like a duplicate of Bug 1820203. Anyone who agrees? [Caller here](https://searchfox.org/comm-central/rev/ffca7da7ce1f80465e21cafb0b950e5d96626305/mail/base/content/mailCore.js#234-240) of comment 4 has `all` parameter, that's exactly what the m-c patch in https://hg.mozilla.org/mozilla-central/rev/5c4935fbf3a5 seems to fix: + mBorderStyle != BorderStyle::All &&
Bug 1823636 Comment 7 Edit History
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(In reply to Magnus Melin [:mkmelin] from comment #6) > Bug 1820203. Looks like a duplicate of Bug 1820203. Anyone who agrees? [Caller here](https://searchfox.org/comm-central/rev/ffca7da7ce1f80465e21cafb0b950e5d96626305/mail/base/content/mailCore.js#234-240) of comment 4 has `all` parameter, that's exactly what the m-c patch in https://hg.mozilla.org/mozilla-central/rev/5c4935fbf3a5 seems to fix: `+ mBorderStyle != BorderStyle::All &&`