$ git clone -n https://src.fedoraproject.org/rpms/rust-varlink_parser.git /var/lib/mock/f39-build-1521242-35836/root/chroot_tmpdir/scmroot/rust-varlink_parser
Cloning into '/var/lib/mock/f39-build-1521242-35836/root/chroot_tmpdir/scmroot/rust-varlink_parser'...
$ git fetch origin 082b5e75d69c2ac7c7f1012301a6444f3f439226:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-varlink_parser
 * [new ref]         082b5e75d69c2ac7c7f1012301a6444f3f439226 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 082b5e7 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild