$ git clone -n https://src.fedoraproject.org/rpms/rust-pango-sys.git /var/lib/mock/f40-build-2073466-49358/root/chroot_tmpdir/scmroot/rust-pango-sys
Cloning into '/var/lib/mock/f40-build-2073466-49358/root/chroot_tmpdir/scmroot/rust-pango-sys'...
$ git fetch origin 8d5d004e88bd6d11b5d36e8f33db115329c3f203:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-pango-sys
 * [new ref]         8d5d004e88bd6d11b5d36e8f33db115329c3f203 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8d5d004 Enable the "v1_52" feature