Run gbp dch when not updating changelog.

ognibuild/debian/build.py

@@ -222,6 +222,7 @@ def attempt_build(
     build_changelog_entry=None,
     subpath="",
     source_date_epoch=None,
+    run_gbp_dch=False
 ):
     """Attempt a build, with a custom distribution set.
 
@@ -236,6 +237,8 @@ def attempt_build(
       source_date_epoch: Source date epoch to set
     Returns: Tuple with (changes_name, cl_version)
     """
+    if run_gbp_dch:
+        gbp_dch(local_tree.abspath(subpath))
     if build_changelog_entry is not None:
         add_dummy_changelog_entry(
             local_tree, subpath, suffix, build_suite, build_changelog_entry

ognibuild/debian/fix_build.py

@@ -530,6 +530,7 @@ def build_incrementally(
                 build_changelog_entry,
                 subpath=subpath,
                 source_date_epoch=source_date_epoch,
+                run_gbp_dch=(update_changelog is False)
             )
         except SbuildFailure as e:
             if e.error is None: