From 1d291be2baa73e4e3b29bcb748a5c9c9b2316d4a Mon Sep 17 00:00:00 2001
From: Scott Lahteine <thinkyhead@users.noreply.github.com>
Date: Tue, 7 Apr 2015 20:01:08 -0700
Subject: [PATCH] Fix de after PREVENT_DANGEROUS_EXTRUDE

- Set `de` to 0 when `position[E] = target[E]`
- Address regression mention in #1846
---
 Marlin/planner.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Marlin/planner.cpp b/Marlin/planner.cpp
index dcfbe674cfe..a0474f94a93 100644
--- a/Marlin/planner.cpp
+++ b/Marlin/planner.cpp
@@ -511,12 +511,14 @@ float junction_deviation = 0.1;
     if (de) {
       if (degHotend(active_extruder) < extrude_min_temp) {
         position[E_AXIS] = target[E_AXIS]; //behave as if the move really took place, but ignore E part
+        de = 0; // no difference
         SERIAL_ECHO_START;
         SERIAL_ECHOLNPGM(MSG_ERR_COLD_EXTRUDE_STOP);
       }
       #ifdef PREVENT_LENGTHY_EXTRUDE
         if (labs(de) > axis_steps_per_unit[E_AXIS] * EXTRUDE_MAXLENGTH) {
           position[E_AXIS] = target[E_AXIS]; // Behave as if the move really took place, but ignore E part
+          de = 0; // no difference
           SERIAL_ECHO_START;
           SERIAL_ECHOLNPGM(MSG_ERR_LONG_EXTRUDE_STOP);
         }