No automatic default values for arguments in functions exported from ES2015 module.

Input code

/**
 * Test function.
 * @param {string} [arg] - Test argument. 
 */
export function test(arg = 'default_value') {}

JSDoc configuration

Default.

JSDoc debug output

DEBUG: JSDoc 4.0.0 (Thu, 03 Nov 2022 18:37:15 GMT)
DEBUG: Environment info: {"env":{"conf":{"plugins":[],"recurseDepth":10,"source":{"includePattern":".+\\.js(doc|x)?$","excludePattern":"(^|\\/|\\\\)_"},"sourceType":"module","tags":{"allowUnknownTags":true,"dictionaries":["jsdoc","closure"]},"templates":{"monospaceLinks":false,"cleverLinks":false,"default":{"outputSourceFiles":true}}},"opts":{"_":["test.js"],"debug":true,"destination":"./out/","encoding":"utf8"}}}
DEBUG: Parsing source files: ["/mnt/storage/jsdoc_bug/test.js"]
Parsing /mnt/storage/jsdoc_bug/test.js ...
DEBUG: Finished parsing source files.
DEBUG: Adding inherited symbols, mixins, and interface implementations...
DEBUG: Adding borrowed doclets...
DEBUG: Post-processing complete.
Generating output files...
Finished running in 0.81 seconds.

Expected behavior

default column in the generated documentation exists and has values.

Current behavior

No default column in generated documentation at all.
With same code sample, but without export keyword, generated documentation has default column and its values:

/**
 * Test function.
 * @param {string} [arg] - Test argument. 
 */
function test(arg = 'default_value') {}

Your environment

Reproduce the issue with the exported function in test.js, using JSDoc 4.0.0 and the default configuration, then compare its generated documentation with the non-exported version. Trace where the default parameter metadata is lost; done means the exported function has a default column containing the expected value.