I am uploading a NMU to DELAYED/10 in order to fix this.
The debdiff is attached.
diff -Nru iitalian-2.3/debian/changelog iitalian-2.3/debian/changelog
--- iitalian-2.3/debian/changelog 2023-09-29 11:45:47.000000000 +0200
+++ iitalian-2.3/debian/changelog 2023-09-29 11:40:27.000000000 +0200
@@ -1,3 +1,11 @@
+iitalian (1:2.3-3.2) unstable; urgency=medium
+
+ * Non-maintainer upload.
+ * Convert to source format 3.0.
+ (closes: #1043189)
+
+ -- Bastian Germann <b...@debian.org> Fri, 29 Sep 2023 11:40:27 +0200
+
iitalian (1:2.3-3.1) unstable; urgency=medium
* Non-maintainer upload.
diff -Nru iitalian-2.3/debian/source/format iitalian-2.3/debian/source/format
--- iitalian-2.3/debian/source/format 1970-01-01 01:00:00.000000000 +0100
+++ iitalian-2.3/debian/source/format 2023-09-29 11:40:22.000000000 +0200
@@ -0,0 +1 @@
+3.0 (quilt)
diff -Nru iitalian-2.3/iitalian.install iitalian-2.3/iitalian.install
--- iitalian-2.3/iitalian.install 2023-09-29 11:45:47.000000000 +0200
+++ iitalian-2.3/iitalian.install 1970-01-01 01:00:00.000000000 +0100
@@ -1 +0,0 @@
-usr/lib/
