Merge branch 'mesh/bugfix_fix_layer2_node_connection_issue' into 'master'

mesh: fix the issue that layer2 node connect to lower-layer node when FIXED-ROOT root disappeared

See merge request espressif/esp-idf!15181
This commit is contained in:
Jiang Jiang Jian
2021-11-18 03:55:00 +00:00