Fix open-loop odometry in case of ref timeout

[christophfroehlich]

In case of ref timeout the open-loop odometry was wrong: It used the last valid command input instead.

[codecov]

Codecov Report

Attention: Patch coverage is 80.00000% with 1 line in your changes missing coverage. Please review.

Project coverage is 83.84%. Comparing base (97d7475) to head (bf597bf).
Report is 1 commits behind head on master.

Files with missing lines	Patch %	Lines
...llers_library/src/steering_controllers_library.cpp	80.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1454      +/-   ##
==========================================
+ Coverage   83.81%   83.84%   +0.03%     
==========================================
  Files         122      122              
  Lines       11122    11119       -3     
  Branches      946      943       -3     
==========================================
+ Hits         9322     9323       +1     
  Misses       1489     1489              
+ Partials      311      307       -4     

Flag	Coverage Δ
unittests	83.84% <80.00%> (+0.03%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
...llers_library/src/steering_controllers_library.cpp	79.72% <80.00%> (ø)

... and 4 files with indirect coverage changes

[destogl]

Looks good. Thanks.