HDF5FilePusher::EndDataCollection released the FileWriter only after
writer->WriteHDF5()/Finalize(), both of which throw at rename time when a
target file already exists and overwrite is off. The throw skipped
writer.reset(), leaving 'writer' non-null so the next StartDataCollection
died with "Image pusher is already writing images".
Tear the writer down on every exit path (try/catch + rethrow) so a failed
collection no longer blocks the next one. The error still propagates and the
orphaned temp files are intentionally left on disk.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
leonarski_fandClaude Fable 5
36be60774f