Corrected code mistakes in HUGGO datasets

[henriquesposito]

Description

These #patch changes correct some previous coding mistakes with HUGGO datasets.

Data

• Corrected coding mistakes with HUGGO and AIGGO datasets in 'agreements' database
• Corrected coding mistakes with HUGGO_MEM in 'memberships' database

Checklist:

• [x] PR form
  • [x] I have given this pull request an informative title
  • [x] Description above itemizes changes under subtitles, e.g. "## Collection""
  • [x] Any closed, fixed, or related issues are referenced and explained in the description above, e.g. "Fixed #0 by adding A"
  • [x] Package builds on my OS without issues
• [x] PR checks all pass for latest commit
  • [x] Package builds on Mac
  • [x] Package builds on Windows
  • [x] Package builds on Linux
• [x] Documentation
  • [x] Any new or modified functions or data have roxygen style documentation in their .R scripts
  • [x] Any longer functions are commented inline so that it is easier to debug in the future
  • [x] PR description above and the NEWS.md file are aligned
  • [x] DESCRIPTION file version is bumped by the appropriate increment (major, minor, patch)