Filter out duplicate collateral inputs in transaction build and build-raw

[Jimbo4350]

Resolves #4744

[nielstron]

This is a small code change so I don't mind but for the future:

The way you re-used my commit kicks me out of the git commit authors (I saw you wrote it in the commit message but its not registered by git itself). If someone has contributed a large code change they might want this to show in the project statistics or on their profile. For that, you can copy the branch of that person (including their authored commits) and then modify in your own repository (even merging commits if thats what you are aiming for). The benefit is that the original author stays co-contributor, recognized by git. Something like the following should do the trick (in this particular case):

git remote add nielstron https://github.com/nielstron/cardano-node
git fetch nielstron
git checkout fix/filter-collateral-inputs
# < do your modifications of the branch >
git push -u origin fix/filter-collateral-inputs # prevents access errors by pushing into own/controlled repo

[Jimbo4350]

This is a small code change so I don't mind but for the future:

The way you re-used my commit kicks me out of the git commit authors (I saw you wrote it in the commit message but its not registered by git itself). If someone has contributed a large code change they might want this to show in the project statistics or on their profile. For that, you can copy the branch of that person (including their authored commits) and then modify in your own repository (even merging commits if thats what you are aiming for). The benefit is that the original author stays co-contributor, recognized by git. Something like the following should do the trick (in this particular case):

git remote add nielstron https://github.com/nielstron/cardano-node
git fetch nielstron
git checkout fix/filter-collateral-inputs
# < do your modifications of the branch >
git push -u origin fix/filter-collateral-inputs # prevents access errors by pushing into own/controlled repo

Thanks for this, I will follow this procedure for this PR and future contributions.