wallet connection fixes

src/blockchain/wallet.js

@@ -140,17 +140,17 @@ const errorHandlingProxy = {
 
 export async function connectWallet(chainId) {
   console.log('connectWallet', chainId)
-  await switchChain(chainId)
-  if (provider!==null) {
-    try {
-      console.log('getSigner')
-      const p = new BrowserProvider(window.ethereum, chainId)
-      await p.getSigner()
-      await updateAccounts(chainId, p)
-    }
-    catch (e) {
-      if (e.reason!=='rejected')
-        console.error(e, e.reason)
+  try {
+    await switchChain(chainId)
+    console.log('getSigner')
+    const p = new BrowserProvider(window.ethereum, chainId)
+    await p.getSigner()
+    await updateAccounts(chainId, p)
+  }
+  catch (e) {
+    if (e.reason!=='rejected') {
+      console.error(e, e.reason)
+      throw e
     }
   }
 }