Extension name change of basic document downloads file with new extension

• Type: Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: 7.0.X, Master
• Fix Version/s: 7.0.0 DXP FP58, 7.0.0 DXP SP9, 7.0.X, 7.1.10 DXP FP1, 7.1.1 CE GA2, 7.1.10.1 SP1, 7.1.X, Master
• Component/s: WCM > Publication
• Labels:
  • backend_test
  • ee-ts
  • liferay-dxp-70-sp9
  • liferay-dxp-71-sp1
  • liferay-fixpack-de-58-7010
  • liferay-fixpack-dxp-1-7110
• Branch Version/s:
  7.0.x
• Backported to Branch:
  Committed
• Story Points: 0.25
• Fix Priority: 3
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal/pull/62122
• Bug Type: Accessibility

Description:
When a file is uploaded to a basic document and the extension of the Title* (name) of the file is changed, that new name is used when trying to download the file and an error occurs.

Steps to Reproduce:
1. Create a new basic document
2. Upload a file to the document (liferay-logo.png for my test); publish
3. Download the file
4. Edit file and change the extension within the file name (.png to .jpg for my test); publish
5. Download the file

Expected Result:
The file downloads with the correct extension (.png for my test)

Actual Result:
The file downloads with the new extension in the file name (.jpg in my test) Attempting to open the file fails due to "Error Interpreting JPEG image file (Not a JPEG file: starts with 0x89 0x50)"

Branch: Reproduced (83cc7c4eeba3caa5bbab62d49038dfccb2c49025)
Master: Reproduced (2afbd3bc6125a7e30ae25ea27a37950157a99f56)

(See attached GIF file for demonstrated behavior)