Chrome Version       : 54.0.2840.100
OS Version: 
URLs (if applicable) :
Other browsers tested:
  Add OK or FAIL after other browsers where you have tested this issue:
     Safari 5:
  Firefox 4.x:
     IE 7/8/9:

What steps will reproduce the problem?
1. In Gmail, click to join a file
2. Select several files with shift+arrow keys. Don't press "Open".
3. Rename one of the files in a terminal.

What is the expected result?

Detecting the file name change and, preferably, proposing to join the files under their new names.

What happens instead of that?

Crashing.

Please provide any additional information below. Attach a screenshot if
possible.

UserAgentString: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/54.0.2840.100 Safari/537.36