$ git clone -n https://src.fedoraproject.org/rpms/rust-varlink.git /var/lib/mock/f40-build-2328340-58867/root/chroot_tmpdir/scmroot/rust-varlink
Cloning into '/var/lib/mock/f40-build-2328340-58867/root/chroot_tmpdir/scmroot/rust-varlink'...
$ git fetch origin 9b7f53f9b52ff5795c6364fd18230a55bff509e7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-varlink
 * [new ref]         9b7f53f9b52ff5795c6364fd18230a55bff509e7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9b7f53f Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild