In TwitterSyncService, method getTweetContentValues() (line 388), a Tweet is
always marked as not retweeted:
cv.put(Tweets.COL_RETWEETED, 0);
However, there is a simple way of knowing if the user retweeted a certain
status:
tweet.isRetweetedByMe().
Therefore I suggest updating the line to:
cv.put(Tweets.COL_RETWEETED, tweet.isRetweetedByMe() ? 1 : 0);