Mission polygon missing speed of waypoint after save/load

[NikolaiVChr]

Reported by a FG user.

He also says altitude dont work, but I could not reproduce that with FG 2019.1.2

I conclude this must be a bug in FG and I have reported it to the devs.

For example loading this waypoint:

<wp n="4">
      <type type="string">basic</type>
      <alt-restrict type="string">at</alt-restrict>
      <altitude-ft type="double">36000</altitude-ft>
      <speed-restrict type="string">mach</speed-restrict>
      <speed type="double">1.24</speed>
      <ident type="string">SV002</ident>
      <lon type="double">-115.50531</lon>
      <lat type="double">37.89523</lat>
</wp>

Will result in a loaded speed restriction of 0.00 mach

And trying to write speed will result in no speed restriction tags written at all.

I don't remember if this was tested to work proper in 2018.3