adding a function and editing the error message for the issue #4151

Author: Saty248

packages/hardhat-network-helpers/src/errors.ts

@@ -17,7 +17,7 @@ export class FixtureSnapshotError extends CustomError {
     super(
       `There was an error reverting the snapshot of the fixture.
 
-This might be caused by using nested loadFixture calls in a test, for example by using multiple beforeEach calls. This is not supported yet.`,
+This might be caused by using hardhat_reset and loadFixture calls in a testcase.`,
       parent
     );
   }

packages/hardhat-network-helpers/src/helpers/reset.ts

@@ -1,3 +1,4 @@
+import { deleteOnReset } from "../loadFixture";
 import type { NumberLike } from "../types";
 import { getHardhatProvider, toNumber } from "../utils";
 
@@ -6,7 +7,7 @@ export async function reset(
   blockNumber?: NumberLike
 ): Promise<void> {
   const provider = await getHardhatProvider();
-
+    deleteOnReset();
   if (url === undefined) {
     await provider.request({
       method: "hardhat_reset",

packages/hardhat-network-helpers/src/loadFixture.ts

@@ -68,3 +68,8 @@ export async function loadFixture<T>(fixture: Fixture<T>): Promise<T> {
     return data;
   }
 }
+
+// function to clear the snapshots array when hardhat_reset is called..
+export async function deleteOnReset(){
+  snapshots=[];
+}