$ git clone -n https://src.fedoraproject.org/rpms/rust-winnow.git /var/lib/mock/f40-build-2170651-51028/root/chroot_tmpdir/scmroot/rust-winnow
Cloning into '/var/lib/mock/f40-build-2170651-51028/root/chroot_tmpdir/scmroot/rust-winnow'...
$ git fetch origin 4f78a5fcb0127f335e4798f09e9de9a4440d5bdf:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-winnow
 * [new ref]         4f78a5fcb0127f335e4798f09e9de9a4440d5bdf -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4f78a5f Update to version 0.5.31; Fixes RHBZ#2252809