$ git clone -n https://src.fedoraproject.org/rpms/rust-cargo-credential-libsecret.git /var/lib/mock/f42-build-59123381-6571232/root/chroot_tmpdir/scmroot/rust-cargo-credential-libsecret
Cloning into '/var/lib/mock/f42-build-59123381-6571232/root/chroot_tmpdir/scmroot/rust-cargo-credential-libsecret'...
$ git fetch origin 5b57243673f2effd236d102012455a86914e4682:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-cargo-credential-libsecret
 * [new ref]         5b57243673f2effd236d102012455a86914e4682 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5b57243 Update to version 0.4.12; Fixes RHBZ#2357165