$ git clone -n https://src.fedoraproject.org/rpms/cosmic-app-library.git /var/lib/mock/f41-build-857425-168091/root/chroot_tmpdir/scmroot/cosmic-app-library
Cloning into '/var/lib/mock/f41-build-857425-168091/root/chroot_tmpdir/scmroot/cosmic-app-library'...
$ git fetch origin f3eaab09d82842ae1071f780805ba9c98b7e2807:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/cosmic-app-library
 * [new ref]         f3eaab09d82842ae1071f780805ba9c98b7e2807 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f3eaab0 Initial commit