#7325 NORM Update.: player-at-cursor and first-element readouts in viewers & watchers not updated sometimes

[Zarro Boogs per Child]

#7325: player-at-cursor and first-element readouts in viewers & watchers not
updated sometimes
----------------------------+-----------------------------------------------
 Reporter:  ScottWallace    |       Owner:  etoys           
     Type:  defect          |      Status:  new             
 Priority:  normal          |   Milestone:  Update.2 (8.2.0)
Component:  etoys-activity  |     Version:  Update.1        
 Keywords:                  |    Verified:  0               
 Blocking:                  |   Blockedby:                  
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 Under certain circumstances, if the lone object in a Holder is removed and
 then dropped back into the Holder, the readouts (in Viewers and Watchers)
 for the player-at-cursor and first-element slots of the Holder are not
 properly updated.

 Copied verbatim from the following discussion by dmoco in TRAC ticket
 7315:

 ...I have three holders (in a row inside yet another holder) and two
 sketches. The left and right holders have scale factor of 1.0, the middle
 one > 1.0. Using one sketch, if I move it by hand or script between the
 three then viewers/watchers update correctly BUT only the first time the
 sketch is included in a holder (order has no effect, neither does the fact
 the middle holder is scaled). The second time the same sketch is
 dropped/included the collections count is updated but not first-element or
 player-at-cursor, although scripts work fine so it looks like a getter
 problem. Using another sketch the getters work again (first time only) and
 likewise if I then use the original sketch.

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Ticket URL: <http://dev.laptop.org/ticket/7325>
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