The picture shows it all...
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Duplicate of MC-3311 , please use the search function to see if your bug has already been submitted. Currently over 30% of tickets are being closed as duplicate.
I searched the issue before putting in it myself but couldn't find anyone that already had said it.

Working as intended.
That's how redstone has always worked on glowstone. Glowstone has other special properties too (http://www.minecraftwiki.net/wiki/File:Glowstone-redstone1.2.png). Works as intended.