Distinguish the behavior of the watchProgress function when the parameter t is set to 0 and when it is not set, so that it matches the description in the comment:
If query parameter 't' is specified, the timestamp given by 't' will be used.
Steps for Testing
Clear website cache
Log in
Navigate to a recording video
Jump to anywhere in the video other than the start
Refresh the page, note that the watch progress has been recorded and can be restored, so that the video resumes at the last progress
Motivation and Context
fixed #1214
Description
Distinguish the behavior of the watchProgress function when the parameter t is set to 0 and when it is not set, so that it matches the description in the comment:
Steps for Testing