Fix memory leak when saving OpenEXR files

It is not a good idea to:

1. Duplicate metadata to self
2. Ignore the fact that something might have had metadata already.

Also moved metadata copy to a preparation function, so it is
never lost.

1 files changed, 4 insertions, 0 deletions

diff --git a/source/blender/imbuf/intern/colormanagement.c b/source/blender/imbuf/intern/colormanagement.c
index cdb8f2c6fa2..a4d5da9993a 100644
--- a/source/blender/imbuf/intern/colormanagement.c
+++ b/source/blender/imbuf/intern/colormanagement.c
@@ -2065,6 +2065,10 @@ ImBuf *IMB_colormanagement_imbuf_for_write(ImBuf *ibuf, bool save_as_render, boo
 		}
 	}
 
+	if (colormanaged_ibuf != ibuf) {
+		IMB_metadata_copy(colormanaged_ibuf, ibuf);
+	}
+
 	return colormanaged_ibuf;
 }