Steps to reproduce:

1. Update the length measurements:

   ibexa_measurement:
       conversion:
           formulas:
               - { source_unit: gauge, target_unit: meter, formula: 'value' }
       types:
           length:
               nanometer: { symbol: "nm" }
               micrometer: { symbol: "μm" }
               centimeter: { symbol: "cm" }
               millimeter: { symbol: "mm" }
               gauge: { symbol: "ga." } # Newly added unit
               inch: { symbol: '"' }
               mil: { symbol: "mil" }
   

       system:
           default:
               measurement:
                   types:
                       length:
                           - gauge
   

2. Create a new Attribute Group with a single measurement attribute and choose "Length".
3. Create a new Product with the gauge measurement and set it to 10 or any other value.
4. Move the gauge unit to a new type:

   ibexa_measurement:
       types:
           gauge_type:
               gauge: { symbol: "ga." }
   

       system:
           default:
               measurement:
                   types:
                       gauge_type:
                           - gauge
   

5. Refresh the page and view the Product created in the previous steps.

Result:
One is presented with the exception:

Argument '$unit' is invalid: gauge for length does not exist. Available units: 'meter', 'centimeter', 'millimeter', 'foot', 'inch', 'yard', 'nanometer', 'micrometer', 'mil'

Expected result:
There should be a command that allows for a seamless transition to a new unit type as database records need to be updated after changing the type.