WCSAxes: image display wrapped

[keflavich]

I'm trying to overlay one image onto another with imshow, i.e.:

fig = pl.figure(1, figsize=(10,10))
fig.clf()
ax = fig.add_subplot(projection=ww.celestial)
ax.imshow(imdata, transform=ax.get_transform(cutimage.wcs.celestial))

The result is:

But the data, as shown with

pl.imshow(data)

look like this:

It appears that, for this transform, edge-wrapping is incorrectly happening.

The background WCS is:

WCS Keywords

Number of WCS axes: 2
CTYPE : 'GLON-CAR'  'GLAT-CAR'  
CRVAL : 8.5  0.0  
CRPIX : 1293.5  2388.5  
CD1_1 CD1_2  : -0.000166666665  0.0  
CD2_1 CD2_2  : 0.0  0.000166666665  
NAXIS : 462  462

The foreground is:

WCS Keywords

Number of WCS axes: 2
CTYPE : 'RA---SIN'  'DEC--SIN'  
CRVAL : 271.587999906  -21.6213053709  
CRPIX : 606.0  495.0  
PC1_1 PC1_2  : 1.0  0.0  
PC2_1 PC2_2  : 0.0  1.0  
CDELT : -3.055555555556e-05  3.055555555556e-05  
NAXIS : 0  0