Description:
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In my application, I'm attempting to retrieve a specific list of keys. When I retrieve this list using getMulti(), many of its elements cannot be accessed directly, even though they clearly exist when print_r()'ing the result array.

This seems to only happen when using Memcache, and doesn't seem to be (only) an issue with PHP's array handling or potential key limitations. If I set an array using the same elements, I can retrieve them at will.

Finally, this only seems to happen when enabling the Binary protocol. I enabled this in hopes of getting additional speed out of my application, and would really like to be able to use it! :)

Reproduce code:
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Honoring '> 20 line' request:
http://pastebin.com/f79f01c2a

Expected result:
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Expected result is to have all elements in the getMulti result array be directly accessible.
For this example, the expected result is for all keys to be marked 'Found'.

Actual result:
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[snip]
GTID:%09%5d%3abn%5c%1e9%7e%0a            Found: "My Key is GTID:%09%5d%3abn%5c%1e9%7e%0a!"
GTID:%09%5d%3bhe)j3p%01                  NOT Found
GTID:%09%5d%3a%15%18*iN%0er              NOT Found
GTID:%09%5d%3a%15%18*iAss                NOT Found
GTID:%09%5d%3a%15%18*iNe4X6z-17t         Found: "My Key is GTID:%09%5d%3a%15%18*iNe4X6z-17t!"