my_context_continue() does not store current fiber on Windows

diff --git a/mysys/my_context.c b/mysys/my_context.c

index 5faa041..62fc05b 100644

--- a/mysys/my_context.c

+++ b/mysys/my_context.c

@@ -696,30 +696,27 @@ my_context_destroy(struct my_context *c)

 int

 my_context_spawn(struct my_context *c, void (*f)(void *), void *d)

 {

-  void *current_fiber;

   c->user_func= f;

   c->user_arg= d;

+  return my_context_continue(c);

+}

+

+int

+my_context_continue(struct my_context *c)

+{

   /*

     This seems to be a common trick to run ConvertThreadToFiber() only on the

     first occurence in a thread, in a way that works on multiple Windows

     versions.

   */

-  current_fiber= GetCurrentFiber();

+  void *current_fiber= GetCurrentFiber();

   if (current_fiber == NULL || current_fiber == (void *)0x1e00)

     current_fiber= ConvertThreadToFiber(c);

   c->app_fiber= current_fiber;

   DBUG_SWAP_CODE_STATE(&c->dbug_state);

   SwitchToFiber(c->lib_fiber);

   DBUG_SWAP_CODE_STATE(&c->dbug_state);

-  return c->return_value;

-}

-int

-my_context_continue(struct my_context *c)

-{

-  DBUG_SWAP_CODE_STATE(&c->dbug_state);

-  SwitchToFiber(c->lib_fiber);

-  DBUG_SWAP_CODE_STATE(&c->dbug_state);

   return c->return_value;

 }