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fix: remove cbv at due to breaking SymM invariants - #14580

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fix: remove cbv at due to breaking SymM invariants#14580
wkrozowski wants to merge 1 commit into
leanprover:masterfrom
wkrozowski:wojciech/cbv_at_invariant_fix

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This PR removes cbv at tactic invocation, thus making the behaviour of cbv the same in conv=>, sym=> and the usual tactic mode consistent. The reason is that cbv at was breaking an internal SymM invariant, stating that context can be only incremental.

@wkrozowski wkrozowski added the changelog-no Do not include this PR in the release changelog label Jul 28, 2026
@github-actions github-actions Bot added toolchain-available A toolchain is available for this PR, at leanprover/lean4-pr-releases:pr-release-NNNN mathlib4-nightly-available A branch for this PR exists at leanprover-community/mathlib4-nightly-testing:lean-pr-testing-NNNN labels Jul 28, 2026
@leanprover-bot leanprover-bot added the breaks-manual This is not necessarily a blocker for merging, but there needs to be a plan. label Jul 28, 2026
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leanprover-bot commented Jul 28, 2026

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Reference manual CI status:

@mathlib-lean-pr-testing mathlib-lean-pr-testing Bot added the builds-mathlib CI has verified that Mathlib builds against this PR label Jul 28, 2026
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@leanprover-bot leanprover-bot added builds-manual CI has verified that the Lean Language Reference builds against this PR and removed breaks-manual This is not necessarily a blocker for merging, but there needs to be a plan. labels Jul 28, 2026
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builds-manual CI has verified that the Lean Language Reference builds against this PR builds-mathlib CI has verified that Mathlib builds against this PR changelog-no Do not include this PR in the release changelog mathlib4-nightly-available A branch for this PR exists at leanprover-community/mathlib4-nightly-testing:lean-pr-testing-NNNN toolchain-available A toolchain is available for this PR, at leanprover/lean4-pr-releases:pr-release-NNNN

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