#15303: Coercion discovery fails to be transitive
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Reporter: nbruin | Owner:
Type: defect | Status: needs_work
Priority: major | Milestone: sage-5.13
Component: coercion | Resolution:
Keywords: | Merged in:
Authors: Simon King | Reviewers:
Report Upstream: N/A | Work issues: Implement
Branch: | backtracking properly
u/SimonKing/ticket/15303 | Commit:
Dependencies: #14711 | 5c0800a07bd83787e59713236e5ccc8dde434760
| Stopgaps:
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Changes (by git):
* commit: 74821fe5409c3104b5d6eb7407a8287d54170df9 =>
5c0800a07bd83787e59713236e5ccc8dde434760
Comment:
Branch pushed to git repo; I updated commit sha1. New commits:
||[changeset:5c0800a]||_coerce_map_from_ shouldn't return default
conversion maps. Fix for embedded number field morphisms||
||[changeset:b7fe7fc]||Use registered coercions *and* embeddings for
backtracking, but prefer the former.||
||[changeset:a18e13e]||Increase coerce cache version in
Morphism.register_as_coercion()||
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Ticket URL: <http://trac.sagemath.org/ticket/15303#comment:66>
Sage <http://www.sagemath.org>
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