Fix bug in strong branching

[guimarqu]

No description provided.

[codecov]

Codecov Report

Merging #612 (32dc3b5) into master (753e956) will increase coverage by 5.46%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #612      +/-   ##
==========================================
+ Coverage   80.78%   86.24%   +5.46%     
==========================================
  Files          48       48              
  Lines        3783     5047    +1264     
==========================================
+ Hits         3056     4353    +1297     
+ Misses        727      694      -33     

Impacted Files	Coverage Δ
src/Algorithm/branching/branchingalgo.jl	89.91% <100.00%> (-1.76%)	⬇️
src/ColunaBase/interface.jl	42.85% <0.00%> (-7.15%)	⬇️
src/MathProg/duties.jl	66.66% <0.00%> (-3.34%)	⬇️
src/optimize.jl	94.02% <0.00%> (-1.53%)	⬇️
src/Algorithm/formstorages.jl	55.43% <0.00%> (-0.92%)	⬇️
src/Algorithm/basic/solvelpform.jl	94.28% <0.00%> (-0.26%)	⬇️
src/MathProg/clone.jl	100.00% <0.00%> (ø)
src/Algorithm/branchcutprice.jl	100.00% <0.00%> (ø)
src/decomposition.jl	99.62% <0.00%> (+0.65%)	⬆️
... and 37 more

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