Fix SEGV caused by goal_handle_ which is nullptr while result_callback called#2356

Merged

SteveMacenski merged 2 commits intoros-navigation:mainfrom

KavenYau:fix-goal-handle-nullptr-issue-in-result_callback

May 29, 2021

Commits on May 21, 2021

Fix SEGV caused by goal_handle_ which is nullptr while result_callback called
KavenYau
committed

Commits on May 29, 2021

Ignoring the goal result if a new goal request sent
KavenYau
committed