[postgis-tickets] [PostGIS] #4236: gidx_to_string doesn't allocate enough memory

[PostGIS]

#4236: gidx_to_string doesn't allocate enough memory
------------------------+---------------------------
 Reporter:  Algunenano  |      Owner:  Algunenano
     Type:  defect      |     Status:  assigned
 Priority:  high        |  Milestone:  PostGIS 3.0.0
Component:  postgis     |    Version:  2.3.x
 Keywords:              |
------------------------+---------------------------
 Manifested in some logs:
 {{{
 got boxes GIDX( 4.99354171753 1.33285224438 -3.40282346639e+38
 3.34260988235, 91.8126296997 100.783157349 3.40282346639e+38 98.150138855
 )� and GIDX( 67.4631118774 3.76653146744, 76.9421615601 23.6310768127 )


 got boxes GIDX( 7.67286014557 3.55379080772 -3.40282346639e+38
 1.00054788589, 96.2146835327 99.1751022339 3.40282346639e+38 94.6226959229
 �
 }}}

 For `" %.12g"` you need at most 20 chars, but is reserving only 15.

 Code has been this way since it was introduced, so all supported releases
 are affected.

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Ticket URL: <https://trac.osgeo.org/postgis/ticket/4236>
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