Schema Compilation Error in Spectral 6.14.3

[himynameisdave]

Describe the bug

After upgrading from Spectral 6.13.1 to 6.14.3, we're encountering a schema compilation error when running the linter. The error occurs during the compilation of a schema validation function, specifically around the handling of the keyedBy property. This seems to come from the avj package.

It runs completely fine in 6.13.1

To Reproduce

1. Upgrade package (Spectral CLI) to version 6.14.3
2. Ensure Node.js version: 18.20.5
3. spectral lint --verbose ./docs/swagger/api.yaml --ruleset ./api.lint.yaml --fail-severity=warn

Expected behavior

• Expected to run without errors.

Screenshots

• N/A

Environment (remove any that are not applicable):

• Node 18.20.5
• Yarn 1.22.19

Additional context

The error message itself:

$ spectral lint --verbose ./docs/swagger/api.yaml --ruleset ./api.lint.yaml --fail-severity=warn
Error compiling schema, function code: const schema16 = scope.schema[10];return function validate14(data, {instancePath="", parentData, parentDataProperty, rootData=data}={}){let vErrors = null;let errors = 0;if((!(data && typeof data == "object" && !Array.isArray(data))) && (data !== null)){const err0 = {instancePath,schemaPath:"#/type",keyword:"type",params:{type: schema16.type},message:"must be object,null"};if(vErrors === null){vErrors = [err0];}else {vErrors.push(err0);}errors++;}if(data && typeof data == "object" && !Array.isArray(data)){for(const key0 in data){if(!(key0 === "keyedBy")){const err1 = {instancePath,schemaPath:"#/additionalProperties",keyword:"additionalProperties",params:{additionalProperty: key0},message:"must NOT have additional properties"};if(vErrors === null){vErrors = [err1];}else {vErrors.push(err1);}errors++;}}if(data.keyedBy !== undefined){if(typeof data.keyedBy !== "string"){const err2 = {instancePath:instancePath+"/keyedBy",schemaPath:"#/properties/keyedBy/type",keyword:"type",params:{type: "string"},message:"must be string"};if(vErrors === null){vErrors = [err2];}else {vErrors.push(err2);}errors++;}}}if(errors > 0){const emErrors0 = {"type":[]};for(const err3 of vErrors){if(((((({"str":"err3"}.keyword !== "errorMessage") && (!{"str":"err3"}.emUsed)) && ({"str":"err3"}.instancePath === instancePath)) && ({"str":"err3"}.keyword in {"str":"emErrors0"})) && ({"str":"err3"}.schemaPath.indexOf("#") === 0)) && (/^\/[^\/]*$/.test({"str":"err3"}.schemaPath.slice(1)))){{"str":"emErrors0"}[{"str":"err3"}.keyword].push({"str":"err3"});{"str":"err3"}.emUsed = true;}}for(const key1 in emErrors0){if({"str":"emErrors0"}[{"str":"key1"}].length){if(vErrors === null){vErrors = [{"str":"err4"}];}else {vErrors.push({"str":"err4"});}errors++;}}const emErrs0 = [];for(const err5 of vErrors){if(!{"str":"err5"}.emUsed){{"str":"emErrs0"}.push({"str":"err5"});}}vErrors = emErrs0;errors = {"str":"emErrs0"}.length;}validate14.errors = vErrors;return errors === 0;}
/Users/me/myapp/node_modules/@stoplight/spectral-core/node_modules/ajv/dist/compile/index.js:120
        throw e;
        ^

SyntaxError: Unexpected token ':'
    at new Function (<anonymous>)
    at Ajv.compileSchema (/Users/me/myapp/node_modules/@stoplight/spectral-core/node_modules/ajv/dist/compile/index.js:89:30)
    at Ajv._compileSchemaEnv (/Users/me/myapp/node_modules/@stoplight/spectral-core/node_modules/ajv/dist/core.js:473:37)
    at Ajv.compile (/Users/himynameisdave/me/myapp/node_modules/@stoplight/spectral-core/node_modules/ajv/dist/core.js:160:38)
    at createRulesetFunction (/Users/me/myapp/node_modules/@stoplight/spectral-core/dist/ruleset/function.js:68:80)
    at Object.<anonymous> (/Users/me/myapp/node_modules/@stoplight/spectral-ruleset-migrator/node_modules/@stoplight/spectral-functions/dist/alphabetical.js:30:61)
    at Module._compile (node:internal/modules/cjs/loader:1364:14)
    at Module._extensions..js (node:internal/modules/cjs/loader:1422:10)
    at Module.load (node:internal/modules/cjs/loader:1203:32)
    at Module._load (node:internal/modules/cjs/loader:1019:12)