Restore proposal density in Fisher jumps

The proposal density for the Fisher jumps was computed but not used. This seemed to cause problems with the Q prior recovery

I have restored the proposal density, and it should work fine for runs that use the elliptical polarization. For runs without the elliptical polarization, it assumes that the A and phi proposal densities are symmetric. I will do nonGR polarization tests separately.

changed title from Fisher to Restore proposal density in Fisher jumps

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assigned to @tyson-littenberg

added 1 commit

• 7e6a4c9f - split Fisher proposal density for the relaxed polarixation case and fix wavelet phase

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mentioned in commit 7f5444f2