1228717 - Resuming download deletes file from another completed download with same filename

Status: NEW

(Toolkit :: Downloads API, defect, P3)

Description

[Arun Das]

User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:42.0) Gecko/20100101 Firefox/42.0
Build ID: 20151029151421

Steps to reproduce:

Similar bug #236514 is verified fixed, but I just had this happen to me on 42.0

1. Download a fairly large file by right-clicking a link and choosing to "save link as". Enter a filename to save the file. It should take at least a few minutes to give you time for next step.
2. Go to the download manager and CANCEL the download. The part file and the file are deleted.
3. Download the file again by right-clicking the link and choosing to "save link as". Enter the same filename (and choose same path) as step 1.
4. Wait for the second download to complete. Once done, verify that the file is fully downloaded.
5. Double-click on the cancelled download (to retry). Note that the download has started again.


Actual results:

Check for the file again, and note that the file which was fully downloaded has been deleted, and the file is being downloaded again. It is being overwritten without any confirmation or notification.


Expected results:

If the file already exists from another download in the download manager, retrying the cancelled download should save it to a renamed file (such as "filename (1).ext").

Comment 1

[Gingerbread Man]

Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:45.0) Gecko/20100101 Firefox/45.0
20151127030231