$ git clone -n https://src.fedoraproject.org/rpms/rust-unindent0.1.git /var/lib/mock/f45-build-45949-829/root/chroot_tmpdir/scmroot/rust-unindent0.1
Cloning into '/var/lib/mock/f45-build-45949-829/root/chroot_tmpdir/scmroot/rust-unindent0.1'...
$ git fetch origin 32972ff88423c3d3798fb09275125c553a670a59:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-unindent0.1
 * [new ref]         32972ff88423c3d3798fb09275125c553a670a59 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 32972ff Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild