[automerger] Fix crash during cursor moving on BiDi text am: 95218ce7ea am: b7a2d47ec2 skipped: 723f13d01f am: 04c7154fd9 am: 65082f8f5b am: 74ffd2bc55 am: f7f008f573

Change-Id: I4122a5c548c4b3395bb546c459c34f10b319ad29