[CMS-PIPELINES] Using VARLOAD to set default value for compound stem doesn't seem to work

[Rick Barlow]

I am trying to use PIPE VARLOAD to set stem variable values in an EXEC. If
I am using simple stem variables, everything seems to work as expected.

Contents of VAR VALUES:
var1.=0
var1.A=1
var1.B=2

'PIPE|',
  '< VAR VALUES|',
  'VARLOAD'
Say var1.A
Say var1.B
say var1.C

Result:
1
2
0

However, if I try to use a compound stem variable, the default stem value
does not get set correctly.
Contents of VAR VALUES:
v.r.=0
v.r.A=1
v.r.B=2

'PIPE|',
  '< VAR VALUES|',
  'VARLOAD'
Say v.r.A
Say v.r.B
say v.r.C

Result:
1
2
V.R.C

I get the same results with both the CMS and Runtime versions of Pipelines.
Has anyone else seen this situation? It looks like a bug but I thought I
would ask here before opening a PMR.

Thanks,
Rick Barlow