faster cond fcst solve #1240

Job	Run time
Julia 1.9 - ubuntu-latest - x64 - push	41m 34s
Julia 1.9 - ubuntu-latest - x64 - push	42m 14s
Julia 1.9 - ubuntu-latest - x64 - push	42m 17s
Julia 1.9 - ubuntu-latest - x64 - push	42m 19s
Julia 1.9 - macOS-latest - x64 - push	1h 21m 5s
Julia 1.9 - macOS-latest - x64 - push	48m 52s
Julia 1.9 - macOS-latest - x64 - push	50m 38s
Julia 1.9 - macOS-latest - x64 - push	42m 19s
Julia 1.9 - windows-latest - x64 - push	42m 23s
Julia 1.9 - windows-latest - x64 - push	50m 20s
Julia 1.9 - windows-latest - x64 - push	1h 11m 23s
Julia 1.9 - windows-latest - x64 - push	41m 41s
Julia 1.8 - ubuntu-latest - x64 - push	1h 12m 7s
Julia 1.8 - ubuntu-latest - x64 - push	1h 7m 23s
Julia ^1.10.0-0 - ubuntu-latest - x64 - push	26m 5s
Julia ^1.10.0-0 - ubuntu-latest - x64 - push	46m 38s
Julia ^1.10.0-0 - ubuntu-latest - x64 - push	40m 43s
Julia ^1.10.0-0 - ubuntu-latest - x64 - push	39m 2s
Julia nightly - ubuntu-latest - x64 - push	10m 43s
	14h 59m 46s

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