[SDK] Fix buyWithCrypto false not respected when returning from quote (#7069)

.changeset/rich-peaches-cheer.md

@@ -0,0 +1,5 @@
+---
+"thirdweb": patch
+---
+
+Fix buyWithCrypto false not respected when going back from quote

packages/thirdweb/src/react/web/ui/ConnectWallet/screens/Buy/BuyScreen.tsx

@@ -510,8 +510,9 @@ function BuyScreenContent(props: BuyScreenContentProps) {
               client={client}
               onBack={() => {
                 if (
-                  screen.id === "buy-with-crypto" ||
-                  screen.id === "buy-with-fiat"
+                  (screen.id === "buy-with-crypto" ||
+                    screen.id === "buy-with-fiat") &&
+                  enabledPaymentMethods.buyWithCryptoEnabled
                 ) {
                   setScreen({
                     id: "select-from-token",