diff -ru dnf-2.7.5.orig/dnf/base.py dnf-2.7.5/dnf/base.py
--- dnf-2.7.5.orig/dnf/base.py	2019-06-01 09:35:45.000000000 +0200
+++ dnf-2.7.5/dnf/base.py	2019-06-01 11:41:34.731888285 +0200
@@ -473,10 +473,9 @@
                         'nodocs': rpm.RPMTRANS_FLAG_NODOCS,
                         'test': rpm.RPMTRANS_FLAG_TEST,
                         'justdb': rpm.RPMTRANS_FLAG_JUSTDB,
-                        'nocontexts': rpm.RPMTRANS_FLAG_NOCONTEXTS,
-                        'nocrypto': rpm.RPMTRANS_FLAG_NOFILEDIGEST}
-    _TS_VSFLAGS_TO_RPM = {'nocrypto': rpm._RPMVSF_NOSIGNATURES |
-                          rpm._RPMVSF_NODIGESTS}
+                        'nocontexts': 0,
+                        'nocrypto': 0}
+    _TS_VSFLAGS_TO_RPM = {'nocrypto': rpm.RPMVSF_NODSAHEADER}
 
     @property
     def _ts(self):
@@ -1663,7 +1662,7 @@
 
         installroot = self.conf.installroot
         myts = dnf.rpm.transaction.initReadOnlyTransaction(root=installroot)
-        myts.pushVSFlags(~(rpm._RPMVSF_NOSIGNATURES | rpm._RPMVSF_NODIGESTS))
+        myts.pushVSFlags(~(rpm.RPMVSF_NODSAHEADER))
         idx = myts.dbMatch('name', 'gpg-pubkey')
         keys = len(idx)
         del idx
diff -ru dnf-2.7.5.orig/dnf/rpm/__init__.py dnf-2.7.5/dnf/rpm/__init__.py
--- dnf-2.7.5.orig/dnf/rpm/__init__.py	2019-06-01 09:35:45.000000000 +0200
+++ dnf-2.7.5/dnf/rpm/__init__.py	2019-06-01 11:40:28.590565110 +0200
@@ -31,7 +31,7 @@
     """Calculate the release version for the system."""
 
     ts = transaction.initReadOnlyTransaction(root=installroot)
-    ts.pushVSFlags(~(rpm._RPMVSF_NOSIGNATURES | rpm._RPMVSF_NODIGESTS))
+    ts.pushVSFlags(~(rpm.RPMVSF_NODSAHEADER))
     for distroverpkg in dnf.const.DISTROVERPKG:
         try:
             idx = ts.dbMatch('provides', distroverpkg)
diff -ru dnf-2.7.5.orig/dnf/rpm/transaction.py dnf-2.7.5/dnf/rpm/transaction.py
--- dnf-2.7.5.orig/dnf/rpm/transaction.py	2019-06-01 09:35:45.000000000 +0200
+++ dnf-2.7.5/dnf/rpm/transaction.py	2019-06-01 11:40:28.591565115 +0200
@@ -119,5 +119,5 @@
 
 def initReadOnlyTransaction(root='/'):
     read_ts =  TransactionWrapper(root=root)
-    read_ts.pushVSFlags((rpm._RPMVSF_NOSIGNATURES|rpm._RPMVSF_NODIGESTS))
+    read_ts.pushVSFlags(rpm.RPMVSF_NODSAHEADER)
     return read_ts