By the confirmation, we did not push sources to nv-tegra for this 32.7.2 release because there have been no changes in the kernel and DTS compared to 32.7.1 release.
Sorry for this.
Thank you. But the general, accepted practice in software development is to push a tag for every release. Multiple tags can be at the same git sha hash. Pushing a tag is better than leaving the Jetpack community guessing or needing a magic decoder ring.