fix go back to acct for prefect cloud login and prefect cloud workspace set

src/prefect/cli/cloud/__init__.py

@@ -197,7 +197,6 @@ def prompt_select_from_list(
     Returns:
         str: the selected option
     """
-
     current_idx = 0
     selected_option = None
 
@@ -243,12 +242,16 @@ def build_table() -> Table:
                 exit_with_error("")
             elif key == readchar.key.ENTER or key == readchar.key.CR:
                 selected_option = options[current_idx]
-                if isinstance(selected_option, tuple):
-                    selected_option = selected_option[0]
+                # Break out of the loop immediately after setting selected_option
+                break
 
             live.update(build_table(), refresh=True)
 
-        return selected_option
+    # Convert tuple to its first element if needed
+    if isinstance(selected_option, tuple):
+        selected_option = selected_option[0]
+
+    return selected_option
 
 
 async def login_with_browser() -> str:
@@ -364,11 +367,13 @@ async def _prompt_for_account_and_workspace(
         None,
         "[bold]Go back to account selection[/bold]",
     )
+
     result = prompt_select_from_list(
         app.console,
         "Which workspace would you like to use?",
         options=workspace_options + [go_back_option],
     )
+
     if not result:
         return None, True
     else:
@@ -688,10 +693,22 @@ async def set(
             if not workspaces:
                 exit_with_error("No workspaces found in the selected account.")
 
+            # Store the original list of workspaces
+            original_workspaces = workspaces.copy()
+
             go_back = True
             workspace = None
+            loop_count = 0
+
             while go_back:
+                loop_count += 1
+
+                # If we're going back, use the original list of workspaces
+                if loop_count > 1:
+                    workspaces = original_workspaces.copy()
+
                 workspace, go_back = await _prompt_for_account_and_workspace(workspaces)
+
             if workspace is None:
                 exit_with_error("No workspace selected.")