Backport PR #2942: Fix Cubeviz movie export (#2943)

Co-authored-by: Ricky O'Steen <39831871+rosteen@users.noreply.github.com>

CHANGES.rst

@@ -7,6 +7,8 @@ Bug Fixes
 Cubeviz
 ^^^^^^^
 
+- Fixed a bug with filename handling for movie exports. [#2942]
+
 Imviz
 ^^^^^
 

jdaviz/configs/default/plugins/export/export.py

@@ -343,6 +343,7 @@ def _normalize_filename(self, filename=None, filetype=None, overwrite=False):
                 filename += f".{filetype}"
             filename = Path(filename).expanduser()
 
+        filename = filename.resolve()
         filepath = filename.parent
         if filepath and not filepath.is_dir():
             raise ValueError(f"Invalid path={filepath}")
@@ -673,7 +674,6 @@ def save_movie(self, viewer, filename, filetype, i_start=None, i_end=None, fps=N
         if i_end <= i_start:
             raise ValueError(f"No frames to write: i_start={i_start}, i_end={i_end}")
 
-        filename = str(filename.resolve())
         threading.Thread(
             target=lambda: self._save_movie(viewer, i_start, i_end, fps, filename, rm_temp_files)
         ).start()