Note that there is single and geminate /d/ vs. /dd/, as explained in Schwegler (1998: 265f). Thus:
Spanish soda > Pal. soda
Spanishsorda > Pal. sodda.
Note: the behaviour of /d/ in Palenquero is similar to that of /d/ in Spanish in that the occlusive allophone occurs (1) after nasals (as in mandá) and (2) after a pause (where it alternates with the fricative variant).