Whose testimony is accepted when spouses disagree about the timing of conversion to Islam after consummation regarding the continuation of the marriage?

Primary text

If the husband states they converted simultaneously or that the wife converted during the waiting period (Iddah), thus maintaining the marriage, and the wife claims the second conversion occurred after the Iddah, dissolving the marriage, there are two stances. The first is that the husband's testimony is accepted because the default status is the continuation of the marriage.