From 8f4db400e202661b8553f6398fc29ebea374c98b Mon Sep 17 00:00:00 2001
From: "S. Eric Clark" <25495882+clarkse@users.noreply.github.com>
Date: Wed, 21 Aug 2024 11:23:34 -0700
Subject: [PATCH] Disabling projection div cleaner when diffusion div cleaner
 is enabled for Yee algorithm.

---
 Source/WarpX.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Source/WarpX.cpp b/Source/WarpX.cpp
index 3d9ba736ddc..ccc472ba579 100644
--- a/Source/WarpX.cpp
+++ b/Source/WarpX.cpp
@@ -1132,7 +1132,8 @@ WarpX::ReadParameters ()
 
         // Update default to external projection divb cleaner if external fields are loaded,
         // the grids are staggered, and the solver is compatible with the cleaner
-        if (m_p_ext_field_params->B_ext_grid_type != ExternalFieldType::default_zero
+        if (!do_divb_cleaning 
+            && m_p_ext_field_params->B_ext_grid_type != ExternalFieldType::default_zero
             && m_p_ext_field_params->B_ext_grid_type != ExternalFieldType::constant
             && grid_type != GridType::Collocated
             && (WarpX::electromagnetic_solver_id == ElectromagneticSolverAlgo::Yee