Editing _rev or _id causes strange behavior in 2.0 build 1362

Steps to reproduce:
-Select to create new document in bucket
-Put in sample JSON:
{
"test": {}
}

-Click save
-New document shows up as:
{
"_id": "sample6",
"_rev": "3-0002fa0e153175350000000000000000",
"test": {},
"$expiration": 0,
"$flags": 0
}

-Edit "_rev" (or edit "_id")
-Click save
-Document shows up as:
{
"test": {},
"$expiration": 0,
"$flags": 0
}

-It's still available in a view, but has no _id or _rev tag, yet the $expiration and $flags are still there. I'm pretty sure this will cause problems with warmup, XDCR, etc.