bug: https://bugs.openjdk.java.net/browse/JDK-8226513
webrev: http://cr.openjdk.java.net/~ssadetsky/8226513/webrev.00/The fix adds resetting the root view initialization flag when the text component underling document is changed and also removes the check for the zero component size for the root view initialization to correct the resulting preferred component size in some scenarios when the root view need to be initially layouted.
--Semyon
