$ git clone -n https://src.fedoraproject.org/rpms/rust-salsa-macros.git /var/lib/mock/f45-build-44663-816/root/chroot_tmpdir/scmroot/rust-salsa-macros
Cloning into '/var/lib/mock/f45-build-44663-816/root/chroot_tmpdir/scmroot/rust-salsa-macros'...
$ git fetch origin 58207b616857c0af832b5cd45e99942462c59e30:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-salsa-macros
 * [new ref]         58207b616857c0af832b5cd45e99942462c59e30 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 58207b6 Update to version 0.28.2; Fixes RHBZ#2499484