Fix collection modified during enumeration in package update checks - #49
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Iterate temporary .ToList() snapshots of Repositories and Packages collections in UpdatesAvailable and CurrentPackageHasUpdateAvailable to avoid InvalidOperationException when collections are modified concurrently. Add null checks on entries for safety. Based on codemann8's fix (codemann8/EmoTracker@617da7a). Fixes #14 Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Summary
.ToList()snapshots ofRepositoriesandPackagescollections inUpdatesAvailableandCurrentPackageHasUpdateAvailableto avoidInvalidOperationExceptionwhen collections are modified concurrentlyBased on codemann8's fix (codemann8/EmoTracker@617da7a).
Fixes #14
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