deviation's default statements don't fully support leaf-lists (YANG 1.1)

[wenovus]

pyang 2.5.0

These are what I think are valid YANG 1.1, but rejected by pyang.

deviate add

  1 module leaf-list-default-deviate {
  2     yang-version "1.1";
  3
  4     prefix a;
  5     namespace "https://a.com";
  6
  7     typedef num-a {
  8       type decimal64 {
  9         fraction-digits 2;
 10         range "1..3.14|10|20..max";
 11       }
 12     }
 13
 14     leaf-list num {
 15       type num-a;
 16     }
 17
 18     deviation /num {
 19       deviate add {
 20         default "2";
 21         default "2.1";
 22       }
 23     }
 24 }

leaf-list-default-deviate.yang:21: error: unexpected keyword "default"
leaf-list-default-deviate.yang:21: error: the "default" property already exists in node "leaf-list-default-deviate::num"

deviate replace

  1 module leaf-list-default-deviate {
  2     yang-version "1.1";
  3
  4     prefix a;
  5     namespace "https://a.com";
  6
  7     typedef num-a {
  8       type decimal64 {
  9         fraction-digits 2;
 10         range "1..3.14|10|20..max";
 11       }
 12     }
 13
 14     leaf-list num {
 15       type num-a;
 16       default "3";
 17       default "3.1";
 18     }
 19
 20     deviation /num {
 21       deviate replace {
 22         default "2";
 23         default "2.1";
 24       }
 25     }
 26 }

leaf-list-default-deviate.yang:23: error: unexpected keyword "default"

deviate delete

  1 module leaf-list-default-deviate {
  2     yang-version "1.1";
  3
  4     prefix a;
  5     namespace "https://a.com";
  6
  7     typedef num-a {
  8       type decimal64 {
  9         fraction-digits 2;
 10         range "1..3.14|10|20..max";
 11       }
 12     }
 13
 14     leaf-list num {
 15       type num-a;
 16       default "3";
 17       default "3.1";
 18     }
 19
 20     deviation /num {
 21       deviate delete {
 22         default "3";
 23         default "3.1";
 24       }
 25     }
 26 }

leaf-list-default-deviate.yang:23: error: unexpected keyword "default"