Troves being removed create unresolved dependencies:
    conary-build:python=1.1.10-1.1-1 requires conary:runtime=1.1.10-1.1-1:
        trove: conary:runtime(1.1.10)
    conary-repository:python=1.1.10-1.1-1 requires conary:runtime=1.1.10-1.1-1:
        trove: conary:runtime(1.1.10)