Change to substitute only the corresponding reference in manifest file

scripts/integrate_into_manifest.py

@@ -44,7 +44,26 @@ def update_manifest(manifest, project: Project, new_revision):
     # We are doing this using a plain text replace action. Unfortunately
     # all python libraries for handling XML data are not able to preserve
     # the file layout, and we want a minimal diff.
-    manifest = manifest.replace(old_revision, new_revision)
+    aux_manifest_file="manifest.txt"
+    with open(aux_manifest_file, "w") as file:
+        file.write(manifest)
+    file.close()
+    readfile = open(aux_manifest_file, "r")
+    replaced_content = ""
+    for line in readfile:
+        if project.path in line:
+            new_line = line.replace(old_revision, new_revision)
+        else:
+            new_line = line
+        # concatenate the new string and add an end-line break
+        replaced_content = replaced_content + new_line
+    readfile.close()
+    writefile = open(aux_manifest_file, "w")
+    writefile.write(replaced_content)
+    writefile.close()
+    with open(aux_manifest_file, 'r') as file:
+        manifest = file.read()
+
     return manifest