commit: properly analyze packages with provides="$pkgname"

src/commit.c

@@ -456,7 +456,8 @@ static void print_conflicts(struct print_state *ps, struct apk_package *pkg)
 			if (d->version == &apk_null_blob &&
 			    p->version == &apk_null_blob)
 				continue;
-			if (once && p->pkg == pkg) {
+			if (once && p->pkg == pkg &&
+			    p->version == d->version) {
 				once = 0;
 				continue;
 			}

test/provides.repo

@@ -97,3 +97,10 @@ V:0.1
 S:1
 I:1
 D:conflicted-dep
+
+C:Q1Eyd5AdpAOBJWKMR89ppC66bbbbj=
+P:self-provide
+V:0.1
+S:1
+I:1
+p:self-provide

test/provides12.test

@@ -0,0 +1,8 @@
+@ARGS
+--test-repo provides.repo
+add self-provide
+@EXPECT
+ERROR: unsatisfiable constraints:
+  self-provide-0.1:
+    conflicts: self-provide-0.1[self-provide]
+    satisfies: world[self-provide]