logilab-database #78366 sql_restart_sequence off by one error [validation pending]

the default implementation of sql_restart_sequence wrongly substracts 1

priorityimportant
typebug
done in1.6.4
load left0.000
closed by#33c99a39abd0 fix off-by-one error in default impl of sql_restart_sequence (closes #78366), #559f59a7912f fix off-by-one error in default impl of sql_restart_sequence (closes #78366)