Refactyl's code verifier wrongly rejected valid Vue 3 output due to internal AST bug

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Code migration platform Refactyl discovered a bug in its own verification pipeline that was incorrectly rejecting valid Vue 3 component conversions. The flaw sat in the compiler gate, which reused a pre-parsed AST from parse() when calling compileTemplate(), an approach that skipped transform metadata required for certain v-if and slot structures. Because the pipeline was designed to fail safely by keeping original files and flagging rejections, no broken code shipped and no errors surfaced, making the bug nearly invisible. The defect only showed up indirectly through a drop in conversion rates and a rise in flagged files, metrics that looked like cautious behavior rather than a fault. The fix was to discard the AST-reuse shortcut and run both verification stages from raw source text instead.

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