I followed your steps to the letter (except that ~/.cache/com.ubuntu.gallery-app should be ~/.cache/com.ubuntu.gallery) and got no crash.
The reason for rtm being old is that we have a silo (line 14 in the spreadsheet) which has been fully tested but QA has not signed off on it for reasons we don't know.
I followed your steps to the letter (except that ~/.cache/ com.ubuntu. gallery- app should be ~/.cache/ com.ubuntu. gallery) and got no crash.
The reason for rtm being old is that we have a silo (line 14 in the spreadsheet) which has been fully tested but QA has not signed off on it for reasons we don't know.