I have found that in the latest snapshot 15w51b when you shot a spectral arrow in creative the arrow is still taken from your inventory.
In the latest snapshot I fired a spectral arrow in creative. I then tried to fire another, however when I shot the first arrow it took it from my inventory even though I was in creative.
System:Java 8 Windows 7
2015-12-18, 12:02 AM
2015-12-18, 12:05 AM
2015-12-18, 12:05 AM
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