We are moving a WP Multisite setup from a staging domain to its final home. We search and replaced the domain in a SQL dump, and reloaded the SQL - all is well except all "which is the primary menu" and "header image" settings have been 'forgotten' - defaults are showing.
Where is this info stored, and thoughts on why this data didn't transfer over?
Update 1: On further research, I think I'm looking for what set_theme_mod() and remove_theme_mod() affect.
Update 2: OK, it's apparently set wp_#_options as mods_$theme, but the data is oddly serialized or something! Help!
Update 3: the mod_mytheme option for each blog does contain the URL of my desired header images, it's just not getting read.