Bug 1288877 - prevent bookmarks batch operations from triggering a continious sync.r=tcsc

MozReview-Commit-ID: L2zh6owKH4S

--HG--
extra : rebase_source : c8842b163fe7c5a3df0bd8dcbed3cb30fcaf3131

services/sync/modules/engines/bookmarks.js

@@ -1536,6 +1536,7 @@ BookmarksTracker.prototype = {
   onEndUpdateBatch: function () {
     if (--this._batchDepth === 0 && this._batchSawScoreIncrement) {
       this.score += SCORE_INCREMENT_XLARGE;
+      this._batchSawScoreIncrement = false;
     }
   },
   onItemVisited: function () {}