Additional routes need to be repaired

[jywarren]

After a recent major version update, we've lost a lot of prior routes, for example for "forking" spectra, comparing, matching, etc.

• Comparing spectra (searching for them) Public Lab Spectral Workbench not listing spectra for comparison or calibration #690
• https://spectralworkbench.org/spectrums/fork/227120

These, once fixed and confirmed, could be protected with routing tests at #736