[BUG] mne coreg GUI saves fiducials in meg space but labels as mri space

Try:

SUBJECT=sample
SUBJECTS_DIR=/path/to/mne_data/MNE-sample-data/subjects/
mne coreg

Save fiducials as test file

import mne
fids, coord_frame = mne.io.read_fiducials('/path/to/saved/mne_sample-fiducials.fif') 
print(fids)

The fiducials are in meg space but have coord_frame 5 corresponding to mri space.

[{'kind': 1, 'ident': 1, 'r': array([-0.07629625, -0.00062556, -0.00776012], dtype=float32),
 'coord_frame': 5}, {'kind': 1, 'ident': 2, 'r': array([0.00267222, 0.09362256, 0.03224791], dtype=float32), 
'coord_frame': 5}, {'kind': 1, 'ident': 3, 'r': array([ 0.07635873, -0.00258065, -0.01212903], 
dtype=float32), 'coord_frame': 5}]

Voxel space is something like:

array([[67.7471001 , 52.83904668, 48.1775196 ],
       [40.75665484, 24.14586344, 64.9023987 ],
       [16.50280451, 56.2472034 , 48.80732148]])

Either the fids should be changed to voxel space or the coordinate system should be changed to head.

[drammock]

the source of the tutorials are in /path/to/mnepython/tutorials/. The rendered versions get put in .../doc/auto_tutorials by sphinx.

[alexrockhill]

Ok sorry super basic question: it looks like auto_tutorials are maybe in the .gitignore? How do I make a feature branch with this edited?