Resampling to "met09globeFull" area definition fails

Describe the bug
Resampling to built-in met09globeFull area definition fails.

To Reproduce

import glob
from satpy import Scene

fnames = glob.glob('/home/lahtinep/data/satellite/new/H*201804111130*')
glbl = Scene(reader='seviri_l1b_hrit', filenames=fnames)
glbl.load(['natural_color'])
lcl = glbl.resample("met09globeFull")

Expected behavior
The loaded product(s) should be resampled to the built-in geostationary projection.

Actual results

lcl = glbl.resample("met09globeFull")                                              
[DEBUG: 2019-10-09 10:11:17 : satpy.scene] Setting 'PPP_CONFIG_DIR' to '/home/lahtinep/Software/pytroll/mpop_etc'
[DEBUG: 2019-10-09 10:11:18 : satpy.scene] Resampling DatasetID(name='natural_color', wavelength=None, resolution=3000.403165817, polarization=None, calibration=None, level=None, modifiers=None)
[DEBUG: 2019-10-09 10:11:18 : pyresample.geometry] Projections for data and slice areas are identical: geos
---------------------------------------------------------------------------
AssertionError                            Traceback (most recent call last)
<ipython-input-22-7e8e8a1b430d> in <module>
----> 1 lcl = glbl.resample("met09globeFull")

~/Software/pytroll/packages/satpy/satpy/scene.py in resample(self, destination, datasets, generate, unload, resampler, reduce_data, **resample_kwargs)
   1103         new_scn.wishlist = self.wishlist.copy()
   1104         self._resampled_scene(new_scn, destination, resampler=resampler,
-> 1105                               reduce_data=reduce_data, **resample_kwargs)
   1106 
   1107         # regenerate anything from the wishlist that needs it (combining

~/Software/pytroll/packages/satpy/satpy/scene.py in _resampled_scene(self, new_scn, destination_area, reduce_data, **resample_kwargs)
   1046                         source_area = source_area[slice_y, slice_x]
   1047                         reductions[key] = (slice_x, slice_y), source_area
-> 1048                     dataset = self._slice_data(source_area, (slice_x, slice_y), dataset)
   1049                 else:
   1050                     LOG.debug("Data reduction disabled by the user")

~/Software/pytroll/packages/satpy/satpy/scene.py in _slice_data(self, source_area, slices, dataset)
    992         slice_x, slice_y = slices
    993         dataset = dataset.isel(x=slice_x, y=slice_y)
--> 994         assert ('x', source_area.x_size) in dataset.sizes.items()
    995         assert ('y', source_area.y_size) in dataset.sizes.items()
    996         dataset.attrs['area'] = source_area

AssertionError: 

Environment Info:

• OS: Ubuntu 18.04 LTS
• Satpy Version: current master branch
• Pyresample Version: current master branch
• Python 3.7 from conda
• pyproj: 2.3.1
• proj: 6.1.1

Additional context
Resampling to other built-in areas, e.g. euro4 works.