diff --git a/db_compare.py b/db_compare.py
index 6eab9e27..cb630fc7 100755
--- a/db_compare.py
+++ b/db_compare.py
@@ -309,7 +309,13 @@ def check_pohadka():
 
 # Problémy jsou rozdělené podle typů:
 def check_problem_common():
-	query = "SELECT * FROM seminar_problemy ORDER BY id"
+	old_query = "SELECT id, nazev, stav, kod, autor_id, text_org, timestamp, typ FROM seminar_problemy ORDER BY id"
+	new_query = """SELECT sp.id AS id, sp.nazev AS nazev, sp.stav AS stav, sp.kod AS kod, au.id AS autor_id, sp.poznamka AS poznamka, sp.vytvoreno AS vytvoreno
+		FROM seminar_problemy AS sp
+		LEFT OUTER JOIN seminar_organizator AS so ON sp.autor_id = so.id
+		LEFT OUTER JOIN seminar_osoby AS sos ON so.osoba_id = sos.id
+		LEFT OUTER JOIN auth_user AS au ON sos.user_id = au.id
+		ORDER BY sp.id"""
 
 	same_fields = ['id', 'nazev', 'stav', 'autor_id', 'kod']
 	renamed_fields = [
@@ -319,7 +325,7 @@ def check_problem_common():
 	old_fields = same_fields + [f[0] for f in renamed_fields]
 	new_fields = same_fields + [f[1] for f in renamed_fields]
 
-	old_res, new_res = execute_simple(query)
+	old_res, new_res = execute_simple(old_query,new_query)
 	res = zip(old_res,new_res)
 
 	for o,n in res:
diff --git a/seminar/migrations/0058_problem_to_uloha_tema_clanek.py b/seminar/migrations/0058_problem_to_uloha_tema_clanek.py
index 14255696..4bdfbd75 100644
--- a/seminar/migrations/0058_problem_to_uloha_tema_clanek.py
+++ b/seminar/migrations/0058_problem_to_uloha_tema_clanek.py
@@ -57,7 +57,7 @@ def uloha_to_Uloha(apps,schema_editor):
 			max_body = uold.body,
 			vytvoreno = uold.vytvoreno,
 			)
-		unew.save()
+		uold.save() # DULEZITE!!! Jinak Uloha.objects.create() přepíše všechny atributy Problému
 		unew.opravovatele.add(*uold.opravovatele.all())
 		
 		# Nody:
@@ -101,9 +101,7 @@ def clanek_to_Clanek(apps,schema_editor):
 			cislo = cislo,
 			# Body ignorujeme, protože už jsou v hodnocení
 			)
-		clnew.save()
-
-		cl.save()
+		cl.save() # DULEZITE!!! Jinak Clanek.objects.create() přepíše všechny atributy Problému
 
 
 def Clanek_Treenody(apps, schema_editor):
@@ -170,6 +168,8 @@ def tema_to_Tema(apps, schema_editor):
 	TextNode = apps.get_model('seminar', 'TextNode')
 	
 	temata = Problem.objects.filter(Q(typ = 'tema') | Q(typ='serial'))
+	#temata = Problem.objects.filter(id=635)
+	#temata = Problem.objects.filter(cislo_zadani_old__id=87)
 	for t in temata:
 		# Vymyslíme správně ročník:
 		if t.cislo_zadani_old is None and t.cislo_reseni_old is None:
@@ -188,7 +188,7 @@ def tema_to_Tema(apps, schema_editor):
 			tema_typ = t.typ,
 			rocnik = rocnik,
 			)
-		tnew.save()
+		t.save() # DULEZITE!!! Jinak Tema.objects.create() přepíše všechny atributy Problému
 
 		# Nody:
 		tnode = TemaVCisleNode(tema = tnew)