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2-category 2-category-theory abelian-categories adjoint algebra algebraic algebraic-geometry algebraic-topology analysis analytic-geometry arithmetic arithmetic-geometry book bundles calculus categorical categories category category-theory chern-weil-theory cohesion cohesive-homotopy-type-theory cohomology colimits combinatorics complex complex-geometry computable-mathematics computer-science constructive cosmology deformation-theory descent diagrams differential differential-cohomology differential-equations differential-geometry digraphs duality elliptic-cohomology enriched fibration foundation foundations functional-analysis functor gauge-theory gebra geometric-quantization geometry graph graphs gravity grothendieck group group-theory harmonic-analysis higher higher-algebra higher-category-theory higher-differential-geometry higher-geometry higher-lie-theory higher-topos-theory homological homological-algebra homotopy homotopy-theory homotopy-type-theory index-theory integration integration-theory k-theory lie-theory limits linear linear-algebra locale localization logic mathematics measure-theory modal modal-logic model model-category-theory monad monads monoidal monoidal-category-theory morphism motives motivic-cohomology nforum nlab noncommutative noncommutative-geometry number-theory of operads operator operator-algebra order-theory pages pasting philosophy physics pro-object probability probability-theory quantization quantum quantum-field quantum-field-theory quantum-mechanics quantum-physics quantum-theory question representation representation-theory riemannian-geometry scheme schemes set set-theory sheaf sheaves simplicial space spin-geometry stable-homotopy-theory stack string string-theory superalgebra supergeometry svg symplectic-geometry synthetic-differential-geometry terminology theory topology topos topos-theory tqft type type-theory universal variational-calculus

1. • CommentRowNumber1.
   • CommentAuthorTobyBartels
   • CommentTimeJan 24th 2011
   • PermaLink
   Author: TobyBartels
   Format: MarkdownItexWe are all familiar with the cache bug when a page is moved; if `[[A]]` is moved to `[[B]]`, then sometimes (the exact conditions are unclear) for a little while (about a day?), the page at `http://ncatlab.org/nlab/show/A` will appear as it did before the move, unless somebody logs into the server and removes the cache. There is another, subtler, form of the cache bug, not associated with a move. If I edit `[[A]]` and then save it, and you immediately look at the changes (or the history, source, etc) of `[[A]]`, you'll see what it was before my save, since my save hasn't quite taken effect yet. Fair enough. But after my save *has* taken effect, then whatever exact page you looked at remains in the cache.

   We are all familiar with the cache bug when a page is moved; if [[A]] is moved to [[B]], then sometimes (the exact conditions are unclear) for a little while (about a day?), the page at http://ncatlab.org/nlab/show/A will appear as it did before the move, unless somebody logs into the server and removes the cache.

   There is another, subtler, form of the cache bug, not associated with a move. If I edit [[A]] and then save it, and you immediately look at the changes (or the history, source, etc) of [[A]], you’ll see what it was before my save, since my save hasn’t quite taken effect yet. Fair enough. But after my save has taken effect, then whatever exact page you looked at remains in the cache.

2. • CommentRowNumber2.
   • CommentAuthorzskoda
   • CommentTimeFeb 29th 2012
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   Author: zskoda
   Format: MarkdownItexI renamed [[compactly generated space]] to [[compactly generated topological space]] following general conventions. The cache version stayed present (it indicates 27 rather than 28 versions).

   I renamed compactly generated space to compactly generated topological space following general conventions. The cache version stayed present (it indicates 27 rather than 28 versions).

3. • CommentRowNumber3.
   • CommentAuthorAndrew Stacey
   • CommentTimeFeb 29th 2012
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   Author: Andrew Stacey
   Format: MarkdownItexFixed. Thanks for reporting.

   Fixed. Thanks for reporting.