Fix Stow Z-Probe blocking future status messages after stowing

[monkeydave]

Description

When told to home using a manual z probe, (Marlin will pause and display a "Deploy Z-Probe" message, and a "Stow Z-Probe" message afterward. This is correct behavior.

What is NOT correct, is that the "Stow Z-Probe" message is then permanently displayed this is because the deploy/stow messages are set to the max alert level which is never cleared after the user presses the button to confirm probe deployed/stowed (The messages should be a high alert level as the printer is waiting for user action and that message shouldn't be overwritten by anything else).

This 1 line fix just resets the alert level after the user has stowed the probe so messages work again. There may be a better way to fix this as I don't know the code very well, but it works for me. 😄

Requirements

Requires manually deployed/stowed bed probe

Benefits

Fixes issue #27232

Configurations

A simple config that adds a LCD and bed probe
Configuration.h.zip

[monkeydave]

Just tested this code and it no longer fixes the issue.
It does work when only homing but does not work while homing during printing from the SD card as the ui.reset_status() call returns from line 1474 of marlinui.cpp instead.