Add back path string copy that was accidentally removed.

@@ -8,6 +8,7 @@
 #include "BLI_endian_switch.h"
 #include "BLI_fileops.hh"
 #include "BLI_path_util.h"
+#include "BLI_probing_strategies.hh"

@@ -410,0 +413,4 @@
+    char norm_buf[256];
+    const size_t size = s.size() + 1;
+    char *norm = (size <= sizeof(norm_buf)) ? norm_buf :
+                                              static_cast<char *>(MEM_mallocN(size, __func__));

@@ -410,0 +434,4 @@
+  }
+};
+
+static bool try_find_bake_directories(const StringRefNull absolute_bake_dir)

@@ -410,0 +419,4 @@
+    BLI_path_slash_rstrip(norm);
+
+    BLI_path_normalize(norm);
+    return DefaultHash<StringRef>()(norm);

@@ -410,0 +465,4 @@
+    const char *base_path = ID_BLEND_PATH(bmain, &object->id);
+
+    LISTBASE_FOREACH (ModifierData *, md, &object->modifiers) {
+      if (md->type == eModifierType_Nodes) {

@@ -410,0 +504,4 @@
+  for (const auto &item : path_users.items()) {
+    /* Check if multiple caches are writing to the same bake directory. */
+    if (item.value > 1) {
+      BKE_reportf(op->reports, RPT_WARNING, "Multiple caches baked to path %s", item.key.data());