The three cases that force a write failure - CardDatabaseTest.Xml4ShortWriteKeepsInstalledFile,
OracleDatabaseWriter.ShortWriteKeepsPreviouslyInstalledDatabase and
SpoilerFileTest.ShortWriteLeavesExistingFileIntact - all forked a child, lowered
RLIMIT_FSIZE and ignored SIGXFSZ. That child is killed by SIGSEGV on the macOS
runners, so all three have been red on every macOS leg of master since they landed,
while the same cases pass on Linux.
Cap the soft limit in the test process instead: ctest already runs one case per
process, and the guard restores the limit and the SIGXFSZ handler, so a whole binary
keeps working. Same real EFBIG failure, no fork, and macOS keeps its coverage of the
writers.
* Preserve spoiler files and serialize update reloads
* Surface spoiler removal reload failures and allow disabled-state retry
* Address review feedback on spoiler update lifecycle
Only remove the spoiler file when the user unchecks the setting; opening
Settings no longer queues an unrequested reload for a leftover file.
Remove the spoilersUpdatedSuccessfully signal, which had no receiver.
* Fix spoiler settings state after reopen and while disabled
Reopen Settings while an application-owned update is running: the new page
now observes that updater, so the button reads Updating... and re-enables
on completion instead of offering a second update that cancels the first.
Observation does not take ownership: only updaters the page creates are
retired with deleteLater, because the launch check is stack-allocated.
When spoilers are off, the hint now describes what Reload Card Database
actually does, stays readable, and wraps instead of clipping.
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Co-authored-by: Lukas Brübach <Bruebach.Lukas@bdosecurity.de>