$ git clone -n https://src.fedoraproject.org/rpms/rust-proc-macro-crate.git /var/lib/mock/epel10.1-build-59195627-6571715/root/chroot_tmpdir/scmroot/rust-proc-macro-crate
Cloning into '/var/lib/mock/epel10.1-build-59195627-6571715/root/chroot_tmpdir/scmroot/rust-proc-macro-crate'...
$ git fetch origin bdbf7e4ff57a0a918d1644472882f418210bea56:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-proc-macro-crate
 * [new ref]         bdbf7e4ff57a0a918d1644472882f418210bea56 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bdbf7e4 Update to version 3.3.0; Fixes RHBZ#2350325