$ git clone -n https://src.fedoraproject.org/rpms/rust-rand_chacha0.1.git /var/lib/mock/f38-build-side-43-rust-devel-1415808-31455/root/chroot_tmpdir/scmroot/rust-rand_chacha0.1
Cloning into '/var/lib/mock/f38-build-side-43-rust-devel-1415808-31455/root/chroot_tmpdir/scmroot/rust-rand_chacha0.1'...
$ git fetch origin 4cde463b4c4c04a8876111ccfddbd2e6a7c37047:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-rand_chacha0.1
 * [new ref]         4cde463b4c4c04a8876111ccfddbd2e6a7c37047 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4cde463 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild