Fix routing error

[cesswairimu]

Fixes edit map routing error experienced with #777

• PR is descriptively titled 📑 and links the original issue above 🔗
• tests pass -- look for a green checkbox ✔️ a few minutes after opening your PR -- or run tests locally with rake test
• code is in uniquely-named feature branch and has no merge conflicts 📁
• screenshots/GIFs are attached 📎 in case of UI updation
• ask @publiclab/mapknitter-reviewers for help, in a comment below

[codeclimate]

Code Climate has analyzed commit 1acf3b1 and detected 0 issues on this pull request.

View more on Code Climate.

[codecov]

Codecov Report

Merging #1003 into main will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main    #1003   +/-   ##
=======================================
  Coverage   73.12%   73.12%           
=======================================
  Files          40       40           
  Lines        1388     1388           
=======================================
  Hits         1015     1015           
  Misses        373      373

[cesswairimu]

Closing this solved in #1001. Thanks @sashadev-sky