fix: DeletedPaper doesn't take into account fetching papers of a research problem/field
requested to merge 222-deletedpaper-doesn-t-take-into-account-fetching-papers-of-a-research-problem-field into master
Closes #222 (closed)
This fix makes sure that the listed papers have Paper class in the research field and research problem pages. and set the class of contributions of deleted paper as DeletedContribution.
Edited by Kheir Eddine