Fix interface trian

[fverdugo]

No description provided.

[codecov-commenter]

Codecov Report

Merging #763 (e620a15) into master (3054ad4) will increase coverage by 0.01%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #763      +/-   ##
==========================================
+ Coverage   88.23%   88.25%   +0.01%     
==========================================
  Files         153      153              
  Lines       16768    16768              
==========================================
+ Hits        14796    14798       +2     
+ Misses       1972     1970       -2     

Impacted Files	Coverage Δ
src/Geometry/SkeletonTriangulations.jl	95.67% <100.00%> (+1.08%)	⬆️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 3054ad4...e620a15. Read the comment docs.