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I have faced some problems today when tried to filter questions by tags:

On Stack Overflow when I click on Unanswered > Android Tag, for example, and then newest, I get questions tagged with C#, c++ or something like that, but no android tags.

Is that a bug? If not, what causes this strange behaviour?

enter image description here

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looking right now; and hands up: this is certainly something I've done. Checking. – Marc Gravell Jun 4 '12 at 11:14
can you provide an example URL? because seems to be working OK – Marc Gravell Jun 4 '12 at 11:18
ah, never mind - it is me; looks like a cache bug; checking... – Marc Gravell Jun 4 '12 at 11:20
The Filter don't work for all the Tags not only Android one – K_Anas Jun 4 '12 at 11:25
I always Get question tagged with C# – K_Anas Jun 4 '12 at 11:26
k; all servers deployed - is it ok now? – Marc Gravell Jun 4 '12 at 11:39
yes it's Fixed, thanks!! – K_Anas Jun 4 '12 at 11:41
up vote 2 down vote accepted

Cache bug, related to changing the internal implementation of something... not very interesting what, but: bug, my bad. Fix is deploying currently. Just need to wait for it to churn through the various environments (and a quick validation etc).

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Is every cache bug your fault? – BoltClock's a Unicorn Jun 4 '12 at 11:39
@BoltClock'saUnicorn no, but my name appears against all of them due to a cache bug – Marc Gravell Jun 4 '12 at 11:40
You seem resigned to it :( – BoltClock's a Unicorn Jun 4 '12 at 11:42
@BoltClock'saUnicorn what can I say; I tend to get involved in a lot of deep-under-the-bonnet crazy tag-querying code. This has lots of highly parallel threading, caching, and cross-server APIs. – Marc Gravell Jun 4 '12 at 11:46

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