Record whether the container has exited

Use this to supplement exit codes returned from containers, to
make sure we know when exit codes are invalid (as the container
has not yet exited)

Signed-off-by: Matthew Heon <mheon@redhat.com>

libpod/container_internal.go

@@ -586,6 +586,8 @@ func (c *Container) reinit(ctx context.Context) error {
 	// Set and save now to make sure that, if the init() below fails
 	// we still have a valid state
 	c.state.State = ContainerStateConfigured
+	c.state.ExitCode = 0
+	c.state.Exited = false
 	if err := c.save(); err != nil {
 		return err
 	}