"a or b" query returns no results, although queries a and b both return data

[msbentley]

Checked for duplicates

Yes - I've already checked

🐛 Describe the bug

These both work:

• q=ref_lid_instrument eq "urn:esa:psa:context:instrument:mtm.mcam"
  • https://pds.nasa.gov/api/search/1/products?limit=100&q=ref_lid_instrument%20eq%20%22urn%3Aesa%3Apsa%3Acontext%3Ainstrument%3Amtm.mcam%22
• q=ref_lid_instrument eq "urn:esa:psa:context:instrument:mcam.mtm"
  • https://pds.nasa.gov/api/search/1/products?limit=100&q=ref_lid_instrument%20eq%20%22urn%3Aesa%3Apsa%3Acontext%3Ainstrument%3Amcam.mtm%22

But this does not

• q=((ref_lid_instrument eq "urn:esa:psa:context:instrument:mtm.mcam") or (ref_lid_instrument eq "urn:esa:psa:context:instrument:mcam.mtm"))
  • https://pds.nasa.gov/api/search/1/products?limit=100&q=%28%28ref_lid_instrument%20eq%20%22urn%3Aesa%3Apsa%3Acontext%3Ainstrument%3Amtm.mcam%22%29%20or%20%28ref_lid_instrument%20eq%20%22urn%3Aesa%3Apsa%3Acontext%3Ainstrument%3Amcam.mtm%22%29%29

🕵️ Expected behavior

I would expect the number of hits to be the sum of the first two queries, but the "or" query returns zero hits. Any clues?

📜 To Reproduce

Run the queries as above.

🖥 Environment Info

• Version of this software [e.g. vX.Y.Z]
• Operating System: [e.g. MacOSX with Docker Desktop vX.Y]
  ...

📚 Version of Software Used

No response

🩺 Test Data / Additional context

No response

🦄 Related requirements

🦄 #xyz

⚙️ Engineering Details

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