$ git clone -n https://src.fedoraproject.org/rpms/rust-duct_sh.git /var/lib/mock/f45-build-41398-782/root/chroot_tmpdir/scmroot/rust-duct_sh
Cloning into '/var/lib/mock/f45-build-41398-782/root/chroot_tmpdir/scmroot/rust-duct_sh'...
$ git fetch origin f3d429373adbdfd135be5cba3e546a7a01f90a60:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-duct_sh
 * [new ref]         f3d429373adbdfd135be5cba3e546a7a01f90a60 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f3d4293 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild