$ git clone -n https://src.fedoraproject.org/rpms/rust-bytemuck_derive.git /var/lib/mock/epel10.0-build-59124031-6571237/root/chroot_tmpdir/scmroot/rust-bytemuck_derive
Cloning into '/var/lib/mock/epel10.0-build-59124031-6571237/root/chroot_tmpdir/scmroot/rust-bytemuck_derive'...
$ git fetch origin 6f72aa04760d9a392a79e1a43585d9a60767c320:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-bytemuck_derive
 * [new ref]         6f72aa04760d9a392a79e1a43585d9a60767c320 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6f72aa0 Update to version 1.9.3; Fixes RHBZ#2336854