From: Roland Mas <lolando@debian.org>
Date: Sun, 16 Mar 2025 16:18:56 +0100
Subject: Get a writable copy of an array before byteswapping it

---
 src/fabio/fit2dmaskimage.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/fabio/fit2dmaskimage.py b/src/fabio/fit2dmaskimage.py
index d2cb4ec..aab5999 100644
--- a/src/fabio/fit2dmaskimage.py
+++ b/src/fabio/fit2dmaskimage.py
@@ -92,6 +92,8 @@ class Fit2dMaskImage(FabioImage):
         # Now to unpack it
         data = numpy.frombuffer(data, numpy.uint8)
         if not numpy.little_endian:
+            data = numpy.copy(data)
+            data.setflags(write=1)
             data.byteswap(True)
 
         data = numpy.reshape(data, (dim2, num_ints * 4))