vite-plugin-html Vite build fails with a relative entry path

Steps to reproduce

init a new vite react project
install vite-plugin-html

remove the script tag from index.html and add the following to vite.config.js:

html({
  entry: 'src/main.jsx', // or starting with ./
  template: 'index.html',
})

executing npm run build will result in the following error:

Output

➜ npm run build

> [email protected] build
> vite build

vite v2.9.1 building for production...                                15:38:34
✓ 1 modules transformed.                                              15:38:34

 ERROR  [vite]: Rollup failed to resolve import "src/main.jsx" from "index.html".
This is most likely unintended because it can break your application at runtime.
If you do want to externalize this module explicitly add it to
`build.rollupOptions.external`


 ERROR  error during build:                                           15:38:34
Error: [vite]: Rollup failed to resolve import "src/main.jsx" from "index.html".
This is most likely unintended because it can break your application at runtime.
If you do want to externalize this module explicitly add it to
`build.rollupOptions.external`
    at onRollupWarning (/home/alex/dev/vite-plugin-html-test/node_modules/vite/dist/node/chunks/dep-611778e0.js:39103:19)
    at onwarn (/home/alex/dev/vite-plugin-html-test/node_modules/vite/dist/node/chunks/dep-611778e0.js:38919:13)
    at Object.onwarn (/home/alex/dev/vite-plugin-html-test/node_modules/rollup/dist/shared/rollup.js:23129:13)
    at ModuleLoader.handleResolveId (/home/alex/dev/vite-plugin-html-test/node_modules/rollup/dist/shared/rollup.js:22419:26)
    at /home/alex/dev/vite-plugin-html-test/node_modules/rollup/dist/shared/rollup.js:22380:26

The build succeeds only with an absolute path in entry (/src/main.jsx), which is confusing - we are usually referencing files relative to the config file we are editing (e.g. template property)