[Mime] Fix email (de)serialization issues #51489
Merged
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#48156 fixed #47991 while introducing a big breaking change (the
File
lazy load feature is broken and that was the whole point of that class when it was introduced in #47462 as that feature existed even prior to that PR) on a minor Symfony version (updating from 6.1 to 6.2 broke our application). More context can be found here: #48156 (comment)This PR aims to revert back the
attachFromPath
behavior to what it was before #48156 while still fixing the deserialization issue reported in #47991The first commit fixes the serialization logic to work the same way it had worked on both 5.4 and 6.1 (which means we are reverting #48156), while the second commit fixes the deserialization issue reported in #47991.
I've also added tests to prevent serialization/deserialization regressions in the future.