tree 0e820a1ed4bf0dbc7c4409d72e79f07656ef5c66
parent 8523601ce9047e0ac12ef2b611c67033d0d387ae
author Joe Onorato <joeo@google.com> 1612554363 -0800
committer Joe Onorato <joeo@google.com> 1613584961 -0800

Keep the first and last snapshot of variables.

So we can compare our reconstruction of the variable state.

Test: treehugger
Change-Id: I9c1995f8969dcf95256aa7c05a01d0431e36caa2