feat: when strict checking is off, treat like transparent

Author: kenrick95

sources/specUtils.ts

@@ -44,7 +44,8 @@ export async function findProjectSpec(initialCwd: string, locator: Locator, {tra
   // A locator is a valid descriptor (but not the other way around)
   const fallbackLocator = {name: locator.name, range: locator.reference};
 
-  if (process.env.COREPACK_ENABLE_STRICT === `0`) return fallbackLocator;
+  if (process.env.COREPACK_ENABLE_STRICT === `0`)
+    transparent = true;
 
   while (true) {
     const result = await loadSpec(initialCwd);

tests/main.test.ts

@@ -270,8 +270,14 @@ it(`should refuse to run a different package manager within a configured project
     process.env.COREPACK_ENABLE_STRICT = `0`;
 
     try {
+      await expect(runCli(cwd, [`yarn`, `--version`])).resolves.toMatchObject({
+        stdout: `1.0.0\n`,
+        stderr: ``,
+        exitCode: 0,
+      });
       await expect(runCli(cwd, [`pnpm`, `--version`])).resolves.toMatchObject({
         stdout: `${config.definitions.pnpm.default.split(`+`, 1)[0]}\n`,
+        stderr: ``,
         exitCode: 0,
       });
     } finally {