$ git clone -n https://src.fedoraproject.org/rpms/rust-filetime.git /var/lib/mock/f39-build-2164893-50974/root/chroot_tmpdir/scmroot/rust-filetime
Cloning into '/var/lib/mock/f39-build-2164893-50974/root/chroot_tmpdir/scmroot/rust-filetime'...
$ git fetch origin 9997cdc76cce0e54d2274a926d998f552ef3d7bb:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-filetime
 * [new ref]         9997cdc76cce0e54d2274a926d998f552ef3d7bb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9997cdc Update to version 0.2.23; Fixes RHBZ#2253030