Add warning that 'purge all' action in Outliner does save to current .blend file.

This is a very important, potentially deadly side-effect of this
operator. If something goes wrong, it can save a broken .blend file.

Ideally we could get rid of that operation anyway, once ID management if
fully renewed, but for now would rather keep it around.

Related to T51902.

1 files changed, 3 insertions, 2 deletions

diff --git a/source/blender/editors/space_outliner/outliner_edit.c b/source/blender/editors/space_outliner/outliner_edit.c
index 335eb95da0e..265a19b9e7e 100644
--- a/source/blender/editors/space_outliner/outliner_edit.c
+++ b/source/blender/editors/space_outliner/outliner_edit.c
@@ -1944,7 +1944,7 @@ static int outliner_orphans_purge_invoke(bContext *C, wmOperator *op, const wmEv
 {
 	/* present a prompt to informing users that this change is irreversible */
 	return WM_operator_confirm_message(C, op,
-	                                   "Purging unused data-blocks cannot be undone. "
+	                                   "Purging unused data-blocks cannot be undone and saves to current .blend file. "
 	                                   "Click here to proceed...");
 }
 
@@ -1966,7 +1966,8 @@ void OUTLINER_OT_orphans_purge(wmOperatorType *ot)
 	/* identifiers */
 	ot->idname = "OUTLINER_OT_orphans_purge";
 	ot->name = "Purge All";
-	ot->description = "Clear all orphaned data-blocks without any users from the file (cannot be undone)";
+	ot->description = "Clear all orphaned data-blocks without any users from the file "
+	                  "(cannot be undone, saves to current .blend file)";
 	
 	/* callbacks */
 	ot->invoke = outliner_orphans_purge_invoke;