1. A computer-implemented method of managing a file-based versioning of data objects, the method comprising: for each transport request of two or more transport requests: receiving, from a back-end computing system, a transport request that comprises an updated transport object, the updated transport object comprising serialized database content of a data object, converting the serialized database content of the updated transport object to file-based content, the file-based content associated with a file-and-folder computer-filing system, storing the file-based content of the updated transport object as a file in a repository of the file-and-folder computer-filing system over a previously-stored version of the transport object, wherein a name of the file includes a name identifier that identifies the data object in a customization database associated with a customization of the back-end computing system, and updating a database that comprises a change history of the data object based on the storage of the file-based content in the repository; merging the two or more transport requests, including: identifying, as stored by the database, a current version of each transport object associated with each transport request, a first transport request associated with a previous version of a particular transport object and a second transport request associated with a current version of the particular transport object, and generating a unique transport request based on the identified current version of each transport object, the unique transport request including only one version of each transport object.