$ git clone -n https://src.fedoraproject.org/rpms/rust-rust_decimal.git /var/lib/mock/f40-build-2718754-72954/root/chroot_tmpdir/scmroot/rust-rust_decimal
Cloning into '/var/lib/mock/f40-build-2718754-72954/root/chroot_tmpdir/scmroot/rust-rust_decimal'...
$ git fetch origin bbf511c57450f7503a6189e3376c7574430d78da:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-rust_decimal
 * [new ref]         bbf511c57450f7503a6189e3376c7574430d78da -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bbf511c Update to version 1.34.3; Fixes RHBZ#2262142