fix(client): show check code button after reset (#50778)

client/src/templates/Challenges/classic/lower-jaw.tsx

@@ -275,7 +275,8 @@ const LowerJaw = ({
         onClick={tryToExecuteChallenge}
         {...(challengeIsCompleted &&
           !focusManagementCompleted && { tabIndex: -1, className: 'sr-only' })}
-        {...(focusManagementCompleted && { 'aria-hidden': true })}
+        {...(challengeIsCompleted &&
+          focusManagementCompleted && { 'aria-hidden': true })}
         ref={checkYourCodeButtonRef}
       >
         {checkButtonText}

cypress/e2e/default/learn/challenges/multifile.ts

@@ -70,6 +70,28 @@ describe('Challenge with multifile editor', () => {
     }
   );
 
+  it(
+    'brings back the check button after reset',
+    { browser: '!firefox' },
+    () => {
+      cy.visit(location);
+      cy.focused().click().type('{end}{enter}<meta charset="UTF-8" />');
+      cy.get(selectors.checkLowerJawButton).should('not.be.focused');
+      cy.get(selectors.checkLowerJawButton).click();
+      // Ready to submit (submit button replaces check button)
+      cy.get(selectors.submitLowerJawButton).should('be.visible');
+      cy.get(selectors.checkLowerJawButton).should('not.be.visible');
+      // Reset
+      cy.get(selectors.resetCodeButton).click();
+      cy.get('[data-cy=reset-modal-confirm').click();
+      // First we need to click on the description or Cypress will not be able
+      // to scroll to the button
+      cy.get('.editor-upper-jaw').click();
+      cy.get(selectors.checkLowerJawButton).should('be.visible');
+      cy.get(selectors.submitLowerJawButton).should('not.be.visible');
+    }
+  );
+
   it(
     'checks hotkeys when instruction is focused',
     { browser: '!firefox' },