stopIO before deleting an account, reset previous accountID

deltachat-ios/Controller/AccountSwitchViewController.swift

@@ -168,7 +168,9 @@ class AccountSwitchViewController: UITableViewController {
             confirm2.addAction(UIAlertAction(title: String.localized("delete"), style: .destructive, handler: { [weak self] _ in
                 guard let self = self else { return }
                 appDelegate.locationManager.disableLocationStreamingInAllChats()
+                self.dcAccounts.stopIo()
                 _ = self.dcAccounts.remove(id: accountId)
+                self.dcAccounts.startIo()
                 KeychainManager.deleteAccountSecret(id: accountId)
                 INInteraction.delete(with: "\(accountId)", completion: nil)
                 if self.dcAccounts.getAll().isEmpty {
@@ -179,7 +181,7 @@ class AccountSwitchViewController: UITableViewController {
                         _ = self.dcAccounts.select(id: lastSelectedAccountId)
                     }
                 }
-                appDelegate.reloadDcContext()
+                self.reloadAndExit(appDelegate: appDelegate, previousAccountId: 0)
             }))
             confirm2.addAction(UIAlertAction(title: String.localized("cancel"), style: .cancel))
             self.present(confirm2, animated: true, completion: nil)

deltachat-ios/Handler/AccountSwitcherHandler.swift

@@ -52,7 +52,9 @@ extension AccountSwitcherHandler {
                 confirm2.addAction(UIAlertAction(title: String.localized("delete"), style: .destructive, handler: { [weak self] _ in
                     guard let self = self else { return }
                     appDelegate.locationManager.disableLocationStreamingInAllChats()
+                    self.dcAccounts.stopIo()
                     _ = self.dcAccounts.remove(id: selectedAccountId)
+                    self.dcAccounts.startIo()
                     KeychainManager.deleteAccountSecret(id: selectedAccountId)
                     INInteraction.delete(with: "\(selectedAccountId)", completion: nil)
                     if self.dcAccounts.getAll().isEmpty {