Fix Version/s: None
The unit test wasn't working before and I edited the unit test of reading raw data. This got included with
DM-3462. This unit test needs testdata_decam to be setup.
The test fails with the stack b1597 at makeWcs (
DM-3196). The afw branch u/yusra/ DM-3196 is a temporary fix before DM-3196 is resolved.