search.list returns video id AAAAAAAAAAA, which is invalid

[GoogleCodeExporter]

What steps will reproduce the problem?
1. Go to: 
https://developers.google.com/apis-explorer/#p/youtube/v3/youtube.search.list?re
latedToVideoId=y6Sxv-sUYtM&part=id&videoSyndicated=true&type=video&videoCategory
Id=10&maxResults=2
2. Click execute query at the bottom

What is the expected output? What do you see instead?
Requested output is the list of related video id's(2 items max)
Instead of it, the second item has id AAAAAAAAAAA which is invalid(unexisting).


What version of the product are you using? On what operating system?
Newest web interface. Or curl.


Please provide any additional information below.

Original issue reported on code.google.com by [email protected] on 18 Jul 2015 at 6:45