Reporting what I consider a bug. My federal and state and status is married filing joint (MFJ), but I have Federal Schedule E income that I pay local taxes on and report to Ohio's Central Collection Agency (CCA). The Schedule E income is earned only by me, so my filing status for CCA is single. The CCA return inherits the MFJ filing status from the federal worksheet, so I must override the CCA local return's filing status to single. This override has the unexpected side effect of (incorrectly) reducing the federal charitable deduction limit from the $600 MFJ limit to the $300 single limit. Notably the override does not seem to affect any of the other values controlled by the federal filing status.
