$ git clone -n https://src.fedoraproject.org/rpms/rust-mailparse.git /var/lib/mock/f40-build-2681812-67962/root/chroot_tmpdir/scmroot/rust-mailparse
Cloning into '/var/lib/mock/f40-build-2681812-67962/root/chroot_tmpdir/scmroot/rust-mailparse'...
$ git fetch origin 2629f17c8859f1c16add0c5629ff031bf25b4888:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-mailparse
 * [new ref]         2629f17c8859f1c16add0c5629ff031bf25b4888 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2629f17 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild