#16275: Hom: introduce a check argument to simplify the unpickling detection 
logic
-------------------------------------+-------------------------------------
       Reporter:  nthiery            |        Owner:
           Type:  enhancement        |       Status:  new
       Priority:  major              |    Milestone:  sage-6.2
      Component:  categories         |   Resolution:
       Keywords:  homset, pickling   |    Merged in:
        Authors:  Nicolas M. Thiéry  |    Reviewers:
Report Upstream:  N/A                |  Work issues:
         Branch:                     |       Commit:
  
u/nthiery/hom__introduce_a_check_argument_to_simplify_the_unpickling_detection_logic|
  507ee00f4f1f81680a52cd798d2fd5a03fb4172d
   Dependencies:                     |     Stopgaps:
-------------------------------------+-------------------------------------

Comment (by SimonKing):

 I am puzzled. I have pulled from your branch. Then I have added a commit,
 and tried `git trac push` and `git push`. The former failed without
 telling me why. The latter failed, and told me
 {{{
 To [email protected]:sage.git
  ! [rejected]
 
t/16275/hom__introduce_a_check_argument_to_simplify_the_unpickling_detection_logic
 ->
 
u/SimonKing/hom__introduce_a_check_argument_to_simplify_the_unpickling_detection_logic
 (non-fast-forward)
 error: Fehler beim Versenden einiger Referenzen nach
 '[email protected]:sage.git'
 Hinweis: Aktualisierungen wurden zurückgewiesen, weil die Spitze eines
 versendeten
 Hinweis: Zweiges hinter seinem externen Gegenstück zurückgefallen ist.
 Checke diesen
 Hinweis: Zweig aus und führe die externen Änderungen zusammen (z.B. 'git
 pull')
 Hinweis: bevor du erneut versendest.
 Hinweis: Siehe auch die Sektion 'Note about fast-forwards' in 'git push
 --help'
 Hinweis: für weitere Details.
 }}}
 In other words, it claims that my branch tip is BEHIND the tip of the
 current branch here. But this is not the case! I did pull before
 committing, and here is the log:
 {{{
 * 76bdaa9 - (HEAD,
 
t/16275/hom__introduce_a_check_argument_to_simplify_the_unpickling_detection_logic)
 Make it so that old homset pickles remain unpicklable (vor 4 Minuten)
 <Simon King>
 * 507ee00 - Trac 16275: fixes for the previous commit; btw its title
 should have read: removed sage.modular.abvar.homspace.Homspace.__reduce__
 (vor 12 Minuten) <Nicolas M. Thiéry>
 * ae3ca80 - This is handled as well by the generic of Homset.__reduce__
 method, and the latter takes care of setting check=False as needed. (vor 4
 Stunden) <Nicolas M. Thiéry>
 * c1e91f3 - #16275: update ticket number in the comments (vor 4 Stunden)
 <Nicolas M. Thiéry>
 }}}

--
Ticket URL: <http://trac.sagemath.org/ticket/16275#comment:24>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica, 
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