Fix issue 689

[fverdugo]

Fixes issue 689

[codecov-commenter]

Codecov Report

Merging #691 (150c70a) into master (24b4851) will decrease coverage by 0.01%.
The diff coverage is 66.66%.

❗ Current head 150c70a differs from pull request most recent head a981329. Consider uploading reports for the commit a981329 to get more accurate results

@@            Coverage Diff             @@
##           master     #691      +/-   ##
==========================================
- Coverage   87.95%   87.94%   -0.02%     
==========================================
  Files         133      133              
  Lines       14966    14968       +2     
==========================================
  Hits        13163    13163              
- Misses       1803     1805       +2     

Impacted Files	Coverage Δ
src/Fields/AffineMaps.jl	63.04% <0.00%> (ø)
src/Geometry/GridPortions.jl	86.02% <100.00%> (+0.30%)	⬆️
src/FESpaces/FESpacesWithConstantFixed.jl	73.75% <0.00%> (-2.50%)	⬇️

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