Extract duplicate code into function. Saves 106B flash.

Firmware/Marlin.h

@@ -497,3 +497,4 @@ void M600_load_filament_movements();
 void M600_wait_for_user(float HotendTempBckp);
 void M600_check_state(float nozzle_temp);
 void load_filament_final_feed();
+void marlin_wait_for_click();

Firmware/Marlin_main.cpp

@@ -4962,13 +4962,7 @@ if((eSoundMode==e_SOUND_MODE_LOUD)||(eSoundMode==e_SOUND_MODE_ONCE))
 		KEEPALIVE_STATE(IN_HANDLER);
         lcd_ignore_click(false);
       }else{
-		KEEPALIVE_STATE(PAUSED_FOR_USER);
-        while(!lcd_clicked()){
-          manage_heater();
-          manage_inactivity(true);
-          lcd_update(0);
-        }
-		KEEPALIVE_STATE(IN_HANDLER);
+        marlin_wait_for_click();
       }
       if (IS_SD_PRINTING)
         LCD_MESSAGERPGM(_T(MSG_RESUMING_PRINT));
@@ -9615,4 +9609,22 @@ if((eSoundMode==e_SOUND_MODE_LOUD)||(eSoundMode==e_SOUND_MODE_ONCE))
 	lcd_update_enable(false);
 }
 
+
+//! @brief Wait for click
+//!
+//! Set
+void marlin_wait_for_click()
+{
+    int busy_state_backup = busy_state;
+    KEEPALIVE_STATE(PAUSED_FOR_USER);
+    lcd_consume_click();
+    while(!lcd_clicked())
+    {
+        manage_heater();
+        manage_inactivity(true);
+        lcd_update(0);
+    }
+    KEEPALIVE_STATE(busy_state);
+}
+
 #define FIL_LOAD_LENGTH 60

Firmware/mmu.cpp

@@ -1518,14 +1518,7 @@ void mmu_continue_loading(bool blocking)
 
                 if (blocking)
                 {
-                    KEEPALIVE_STATE(PAUSED_FOR_USER);
-                    lcd_consume_click();
-                    while(!lcd_clicked()){
-                        manage_heater();
-                        manage_inactivity(true);
-                        lcd_update(0);
-                    }
-                    KEEPALIVE_STATE(IN_HANDLER);
+                    marlin_wait_for_click();
                     restore_print_from_ram_and_continue(0);
                     mmu_command(MmuCmd::T0 + tmp_extruder);
                     manage_response(true, true, MMU_TCODE_MOVE);