gnucash stable: [balsheet-pnl.scm] don't generate exchange-fn unnecessarily

[Christopher Lam]

Updated	 via  https://github.com/Gnucash/gnucash/commit/87c8cd89 (commit)
	from  https://github.com/Gnucash/gnucash/commit/c0a38d34 (commit)



commit 87c8cd8916b74151654ab0ed02da714e5a4951b1
Author: Christopher Lam <christopher.lck at gmail.com>
Date:   Sat Jun 7 21:48:40 2025 +0800

    [balsheet-pnl.scm] don't generate exchange-fn unnecessarily
    
    - this will omit warning if common-currency (also price-source) are #f
    - this will also avoid the costly gnc:case-exchange-time-fn call



Summary of changes:
 gnucash/report/reports/standard/balsheet-pnl.scm | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)