$ git clone -n https://src.fedoraproject.org/rpms/libmspub.git /var/lib/mock/f42-build-862628-170967/root/chroot_tmpdir/scmroot/libmspub
Cloning into '/var/lib/mock/f42-build-862628-170967/root/chroot_tmpdir/scmroot/libmspub'...
$ git fetch origin f6e42ad1154c86ad7241fe67329f19a6ec2f45f5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libmspub
 * [new ref]         f6e42ad1154c86ad7241fe67329f19a6ec2f45f5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f6e42ad Rebuild for ICU 76