$ git clone -n https://src.fedoraproject.org/rpms/rust-enum-map-derive.git /var/lib/mock/f39-build-1455493-32917/root/chroot_tmpdir/scmroot/rust-enum-map-derive
Cloning into '/var/lib/mock/f39-build-1455493-32917/root/chroot_tmpdir/scmroot/rust-enum-map-derive'...
$ git fetch origin 25b1f959455b4bb43373de5e0765b8442a813d49:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-enum-map-derive
 * [new ref]         25b1f959455b4bb43373de5e0765b8442a813d49 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 25b1f95 Update to version 0.14.0; Fixes RHBZ#2238229