[PostGIS] #5921: pfree of NULL in gserialized_sel_internal()

[PostGIS]

#5921: pfree of NULL in gserialized_sel_internal()
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  Reporter:  arseniymukhin  |      Owner:  pramsey
      Type:  defect         |     Status:  new
  Priority:  medium         |  Milestone:  PostGIS 3.5.4
 Component:  postgis        |    Version:  master
Resolution:                 |   Keywords:
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Comment (by Paul Ramsey <pramsey@…>):

 In [changeset:"c429b883f8dd380f858dcd0a521c4f89181b9f0e/git" c429b88/git]:
 {{{#!CommitTicketReference repository="git"
 revision="c429b883f8dd380f858dcd0a521c4f89181b9f0e"
 Avoid free when pointer is null. References #5921
 }}}
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Ticket URL: <https://trac.osgeo.org/postgis/ticket/5921#comment:2>
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