Fix `p` is always used for table spec (refs #1580)

sphinx/writers/latex.py

@@ -1106,6 +1106,8 @@ class LaTeXTranslator(nodes.NodeVisitor):
                 context += str(extracols + 1)
                 context += '}{l|}{}'
                 self.table.col += extracols
+        if len(node.traverse(nodes.paragraph)) >= 2:
+            self.table.has_problematic = True
         self.context.append(context)
 
     def depart_entry(self, node):
@@ -1214,8 +1216,6 @@ class LaTeXTranslator(nodes.NodeVisitor):
 
     def visit_paragraph(self, node):
         self.body.append('\n')
-        if self.table:
-            self.table.has_problematic = True
 
     def depart_paragraph(self, node):
         self.body.append('\n')