The logic in webroot/rsrc/js/application/differential/behavior-user-select.js to make text unselectable makes inline comments unselectable in Unified diff view. In side-by-side view, both inline comments and code are selectable. It is often useful to be able to copy/paste text from other's inline comments.
Phabricator version 067d12d7168a580bce695cb26331df785f86c2e9, in Chrome 53.0.2785.116.
With no claim that this is the world's most elegant fix, I think this may be a fix:
diff --git a/webroot/rsrc/css/application/differential/core.css b/webroot/rsrc/css/application/differential/core.css index 2dcc02b..af7544a 100644 --- a/webroot/rsrc/css/application/differential/core.css +++ b/webroot/rsrc/css/application/differential/core.css @@ -16,7 +16,7 @@ margin-bottom: 8px; } -.differential-unselectable tr td:nth-of-type(1) { +.differential-unselectable.diff-2up tr td:nth-of-type(1) { -moz-user-select: -moz-none; -khtml-user-select: none; -webkit-user-select: none;