$ git clone -n https://src.fedoraproject.org/rpms/rust-dirs-sys.git /var/lib/mock/f39-build-1517003-35673/root/chroot_tmpdir/scmroot/rust-dirs-sys
Cloning into '/var/lib/mock/f39-build-1517003-35673/root/chroot_tmpdir/scmroot/rust-dirs-sys'...
$ git fetch origin 69279851fc3e598d8b35715e244307e349e51ec6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-dirs-sys
 * [new ref]         69279851fc3e598d8b35715e244307e349e51ec6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6927985 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild