revert: Restore conditional the_content filter usage

- Reverted nuclear option from v0.4.8
- get_post_data() now uses the_content filter conditionally
- All other protections remain in place
- Memory leak investigation to be continued later

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

CHANGELOG.md

@@ -7,11 +7,20 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [0.4.9] - 2026-02-02
+
+### Changed
+
+- **Reverted nuclear option** - Restored conditional the_content filter usage
+  - `get_post_data()` now uses the_content filter only when NOT in shortcode context, NOT at depth > 1, and NOT loading page template
+  - All other protections remain in place (render depth, page template loading flag, main template lock, shortcode context)
+  - Memory leak investigation to be continued later
+
 ## [0.4.8] - 2026-02-02
 
 ### Fixed
 
-- **Nuclear option: NEVER apply the_content filter** - Completely removed the_content filter usage
+- **Nuclear option: NEVER apply the_content filter** - Completely removed the_content filter usage (reverted in 0.4.9)
   - `get_post_data()` now ALWAYS strips shortcodes and uses raw content
   - NEVER calls `apply_filters('the_content', ...)` or `get_the_excerpt()`
   - FediStream posts don't need shortcode processing in their content anyway
@@ -274,7 +283,8 @@ Initial release of WP FediStream - a WordPress plugin for streaming music over A
 
 ---
 
-[Unreleased]: https://src.bundespruefstelle.ch/magdev/wp-fedistream/compare/v0.4.8...HEAD
+[Unreleased]: https://src.bundespruefstelle.ch/magdev/wp-fedistream/compare/v0.4.9...HEAD
+[0.4.9]: https://src.bundespruefstelle.ch/magdev/wp-fedistream/compare/v0.4.8...v0.4.9
 [0.4.8]: https://src.bundespruefstelle.ch/magdev/wp-fedistream/compare/v0.4.7...v0.4.8
 [0.4.7]: https://src.bundespruefstelle.ch/magdev/wp-fedistream/compare/v0.4.6...v0.4.7
 [0.4.6]: https://src.bundespruefstelle.ch/magdev/wp-fedistream/compare/v0.4.5...v0.4.6