$ git clone -n https://src.fedoraproject.org/rpms/rust-indexmap1.git /var/lib/mock/f39-build-1543507-36564/root/chroot_tmpdir/scmroot/rust-indexmap1
Cloning into '/var/lib/mock/f39-build-1543507-36564/root/chroot_tmpdir/scmroot/rust-indexmap1'...
$ git fetch origin 2fff48689d303d79cbc603995da5f79e0039b44e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-indexmap1
 * [new ref]         2fff48689d303d79cbc603995da5f79e0039b44e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2fff486 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild