Hi!
Suppose you write data to orig.sobj, and then you create a symbolic link
copy.sobj to orig.sobj. If you now save data under the name copy.sobj,
then the data in orig.sobj get overridden:
sage: d = tmp_dir()
sage: save(1, os.path.join(d, 'orig'))
sage: os.symlink(os.path.join(d, 'orig.sobj'), os.path.join(d,
'copy.sobj'))
sage: save(2, os.path.join(d, 'copy.sobj'))
sage: load(os.path.join(d, 'orig.sobj'))
2
sage: load(os.path.join(d, 'copy.sobj'))
2
sage: os.path.islink(os.path.join(d, 'copy.sobj'))
True
Do you agree that this is a bug?
I would expect that saving data into a file named copy.sobj would override
the symbolic link that previously existed under the name copy.sobj, so that
in the end copy.sobj would not be a link, and so that the file orig.sobj
pointed at by the symbolic link would not be touched.
Best regards,
Simon
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