Disable bidi trailing/leading whitespace kludge in RTL editor

Since it produces orderings that don't correspond to what
the browser does then.

Author: marijnh

src/util/bidi.js

@@ -189,13 +189,15 @@ let bidiOrdering = (function() {
         if (pos < i) order.splice(at, 0, new BidiSpan(1, pos, i))
       }
     }
-    if (order[0].level == 1 && (m = str.match(/^\s+/))) {
-      order[0].from = m[0].length
-      order.unshift(new BidiSpan(0, 0, m[0].length))
-    }
-    if (lst(order).level == 1 && (m = str.match(/\s+$/))) {
-      lst(order).to -= m[0].length
-      order.push(new BidiSpan(0, len - m[0].length, len))
+    if (direction == "ltr") {
+      if (order[0].level == 1 && (m = str.match(/^\s+/))) {
+        order[0].from = m[0].length
+        order.unshift(new BidiSpan(0, 0, m[0].length))
+      }
+      if (lst(order).level == 1 && (m = str.match(/\s+$/))) {
+        lst(order).to -= m[0].length
+        order.push(new BidiSpan(0, len - m[0].length, len))
+      }
     }
 
     return direction == "rtl" ? order.reverse() : order